Executive Summary:
A high-severity vulnerability, identified as CVE-2026-1420 with a CVSS score of 8.8, has been discovered in multiple products from the vendor "flaw". This vulnerability could allow a remote, unauthenticated attacker to execute arbitrary code and gain complete control of an affected system. Successful exploitation poses a significant risk of data theft, service disruption, and further network compromise, requiring immediate attention.

Vulnerability Details

CVE-ID: CVE-2026-1420

Affected Software: flaw Multiple Products

Affected Versions: See vendor advisory for specific affected versions.

Vulnerability: This vulnerability is a pre-authentication stack-based buffer overflow. A network-accessible service within the affected products fails to properly validate the length of user-supplied input before copying it to a fixed-size buffer on the stack. An unauthenticated remote attacker can exploit this by sending a specially crafted network packet containing a malicious payload, triggering the overflow and allowing for the execution of arbitrary code with the privileges of the affected service.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit could grant an attacker complete control over the compromised system, leading to severe business consequences. These include the potential for exfiltration of sensitive corporate or customer data, deployment of ransomware, disruption of critical business operations dependent on the affected software, and using the compromised asset as a pivot point to launch further attacks against the internal network. The financial and reputational damage resulting from such a breach could be substantial.

Remediation Plan

Immediate Action: Apply the security updates provided by the vendor immediately across all affected systems. Prioritize patching for internet-facing systems to reduce the most immediate risk. After patching, monitor system logs and network traffic for any signs of exploitation attempts or anomalous behavior.

Proactive Monitoring: Implement enhanced monitoring on affected systems. Security teams should look for unexpected crashes or restarts of the affected application, unusual outbound network connections, and the execution of suspicious processes. Utilize Intrusion Detection/Prevention Systems (IDS/IPS) with rulesets designed to detect and block traffic patterns associated with this vulnerability.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to mitigate risk. Restrict network access to the vulnerable services to only trusted hosts and networks. Place affected systems behind a Web Application Firewall (WAF) or Intrusion Prevention System (IPS) with virtual patching capabilities that can inspect and block malicious exploit traffic.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of January 26, 2026, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, due to the high severity (CVSS 8.8) and the relative simplicity of the vulnerability class, it is highly probable that threat actors will reverse-engineer the vendor patch to develop a working exploit in the near future. Organizations should operate under the assumption that exploitation is imminent.

Analyst Recommendation

Given the high severity of this vulnerability, immediate and decisive action is required. We strongly recommend that all organizations using the affected "flaw" products treat this as a critical priority and apply the vendor-provided security updates without delay. While this vulnerability is not currently listed on the CISA KEV catalog, its high CVSS score indicates a significant potential for widespread impact, and its status could change rapidly if exploitation is observed. Until systems are patched, the compensating controls outlined above should be implemented to reduce the attack surface and mitigate immediate risk.

Executive Summary:
A high-severity vulnerability has been identified in certain Tenda network devices, allowing a remote, unauthenticated attacker to gain complete control over the affected product. Successful exploitation could lead to network traffic interception, data theft, and the ability for an attacker to use the compromised device to launch further attacks against the internal network. Immediate patching is critical to mitigate the significant risk posed by this weakness.

Vulnerability Details

CVE-ID: CVE-2025-9791

Affected Software: Tenda AC20 and potentially other products

Affected Versions: Tenda AC20 firmware version 16.x. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This vulnerability is a command injection flaw in the web-based management interface of the Tenda AC20 router. An unauthenticated attacker on the same network (or an attacker who can reach the management interface) can send a specially crafted HTTP request to a specific administrative endpoint. The device fails to properly sanitize user-supplied input within this request, allowing the attacker to inject and execute arbitrary operating system commands with root-level privileges, resulting in a complete compromise of the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation of this flaw could have a severe impact on business operations. An attacker gaining root access to a core network device can intercept all unencrypted traffic, including sensitive credentials and confidential information. The attacker could also modify network traffic, redirect users to malicious websites, disrupt network services, or use the router as a pivot point to attack other critical systems on the internal network. Furthermore, the compromised device could be co-opted into a botnet for use in larger-scale attacks like Distributed Denial-of-Service (DDoS).

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately across all affected devices. Before and after patching, administrators should monitor for any signs of exploitation attempts by reviewing device and network access logs for unusual activity or connections originating from the affected devices.

Proactive Monitoring: Implement enhanced monitoring of network traffic originating from the Tenda devices. Look for unusual outbound connections, unexpected DNS queries, or traffic patterns indicative of command-and-control (C2) communication. Review the device's web server logs for HTTP requests containing shell metacharacters (e.g., ;, |, &&, $()) or other suspicious command strings.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Disable remote/WAN management of the device's web interface.
• Restrict access to the web management interface to a limited set of trusted administrative IP addresses using firewall rules.
• Implement network segmentation to isolate the router from critical internal assets, limiting the potential impact of a compromise.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of September 1, 2025, there are no publicly available proof-of-concept exploits or observed in-the-wild exploitation campaigns targeting this vulnerability. However, vulnerabilities of this nature in network edge devices are highly attractive targets for threat actors. It is anticipated that security researchers and malicious actors will develop exploit code rapidly.

Analyst Recommendation

Given the high CVSS score of 8.8 and the potential for complete, unauthenticated remote device takeover, this vulnerability presents a critical risk to the organization. Although CVE-2025-9791 is not currently on the CISA KEV list, its severity warrants immediate and prioritized attention. We strongly recommend that all organizations using affected Tenda products apply the vendor-supplied security patches on an emergency basis. For systems that cannot be patched immediately, the compensating controls listed above should be implemented without delay to mitigate the risk.

Executive Summary:
A critical vulnerability has been identified in multiple Tenda networking products, carrying a CVSS score of 9.8. This flaw allows an unauthenticated attacker on the same network to execute arbitrary code and gain complete control over an affected device by sending a specially crafted request. Successful exploitation could lead to a full network compromise, data theft, and the use of the device in further attacks.

Vulnerability Details

CVE-ID: CVE-2025-9523

Affected Software: Tenda Multiple Products

Affected Versions: Tenda AC1206 firmware version 15.03.06.23 is confirmed to be vulnerable. Other products and versions may also be affected. See vendor advisory for specific affected versions.

Vulnerability: This vulnerability is a pre-authentication stack-based buffer overflow in the web management interface. It exists within the GetParentControlInfo function, which is accessible via the /goform/GetParentControlInfo endpoint. An unauthenticated attacker can send a crafted HTTP request with an overly long value in the mac argument. The application fails to properly validate the length of this input, leading to a buffer overflow on the stack, which can be leveraged to crash the device or, more severely, achieve remote code execution with root privileges.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation by an unauthenticated attacker allows for a complete takeover of the affected networking device. This could lead to severe business disruption, including the interception and redirection of all network traffic, compromise of internal network segments, and data exfiltration. A compromised router can serve as a persistent pivot point for attackers to launch further attacks against other systems within the organization's network and can be co-opted into a botnet for use in external attacks like DDoS campaigns.

Remediation Plan

Immediate Action: Update all affected Tenda devices to the latest firmware version as recommended by the vendor. After patching, monitor for any signs of exploitation attempts by reviewing web access logs for suspicious activity targeting the vulnerable endpoint that may have occurred prior to the update.

Proactive Monitoring:

• Monitor web server logs for anomalous requests to the /goform/GetParentControlInfo endpoint, specifically looking for requests containing an abnormally long value in the mac parameter.
• Implement network intrusion detection system (NIDS) rules to detect and alert on traffic patterns indicative of this exploit.
• Monitor for any unexpected outbound connections originating from the Tenda devices, which could indicate a successful compromise.

Compensating Controls:

• If immediate patching is not feasible, restrict access to the device's web management interface to a trusted and isolated management network.
• Implement firewall rules to block any external access to the device's management interface from the internet.
• If available, use a Web Application Firewall (WAF) to filter and block malicious requests targeting the /goform/GetParentControlInfo endpoint.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of August 27, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the critical severity (CVSS 9.8) and the relative simplicity of exploiting stack-based buffer overflows in embedded devices, it is highly probable that a functional proof-of-concept exploit will be developed and published by security researchers or threat actors in the near future.

Analyst Recommendation

Given the critical severity of this vulnerability, immediate action is required. All organizations using affected Tenda products must prioritize the deployment of vendor-supplied firmware updates to mitigate the risk of a full network compromise. Although this vulnerability is not currently listed on the CISA KEV catalog, its high impact and the widespread deployment of these devices make it a likely candidate for future inclusion. If patching cannot be performed immediately, the compensating controls listed above should be implemented as a matter of urgency to reduce the attack surface.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-9089, has been discovered in multiple Tenda products, specifically confirmed in the Tenda AC20 router. This flaw could allow an unauthenticated, remote attacker to gain complete control over an affected device. Successful exploitation could lead to network traffic interception, data theft, and the ability to use the compromised device to launch further attacks against the internal network.

Vulnerability Details

CVE-ID: CVE-2025-9089

Affected Software: Tenda Multiple Products

Affected Versions: The Tenda AC20 with firmware version 16 is confirmed to be affected. See vendor advisory for a complete list of other affected products and versions.

Vulnerability: This vulnerability is a critical flaw, likely a command injection or buffer overflow within the device's web management interface. An unauthenticated attacker on the same network segment could send a specially crafted request to the device's web server. This could lead to arbitrary code execution with the highest level of privileges (root), effectively giving the attacker full control over the router's operating system.

Business Impact

This vulnerability presents a significant risk to the organization, categorized as High severity with a CVSS score of 8.8. Exploitation could lead to a complete compromise of the network boundary security provided by the affected device. Potential consequences include the interception of sensitive data traversing the network, unauthorized access to internal network resources, and operational disruption. A compromised device could also be integrated into a botnet for use in larger-scale attacks, leading to reputational damage and potential blacklisting of the organization's IP addresses.

Remediation Plan

Immediate Action: Apply vendor security updates immediately. Administrators should navigate to the official Tenda support website to download and install the latest firmware for all affected models. After patching, monitor for any signs of exploitation attempts by reviewing device and network access logs for anomalous activity.

Proactive Monitoring: System administrators should actively monitor for indicators of compromise. This includes reviewing device logs for unexpected reboots, unauthorized configuration changes, or unusual administrative logins. Monitor network traffic for suspicious outbound connections from the affected devices to unknown IP addresses, which could indicate a command-and-control channel.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Restrict access to the device's web management interface to a limited set of trusted IP addresses.
• Disable remote (WAN) administration to prevent exploitation from the public internet.
• Place the device behind a network firewall and implement rules to limit traffic to and from the device's management ports.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of August 17, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the high severity score, it is highly probable that threat actors will reverse-engineer the vendor patch to develop a functional exploit. The window for safe remediation is likely to be short.

Analyst Recommendation

Given the high CVSS score of 8.8 and the potential for complete system compromise, this vulnerability requires immediate attention. Although not currently listed on the CISA KEV catalog, its severity makes it a prime candidate for future exploitation. We strongly recommend that organizations identify all affected Tenda devices within their environment and apply the vendor-supplied security patches on an emergency basis. If patching must be delayed, the compensating controls outlined above, particularly restricting access to the management interface, should be implemented without delay.

Executive Summary:
A high-severity vulnerability has been identified in Tenda networking equipment, which could allow an unauthenticated attacker on the local network to gain complete control over the affected device. Successful exploitation could lead to network traffic interception, denial of service, and further attacks against the internal network. Organizations are urged to apply vendor-supplied security updates immediately to mitigate this significant risk.

Vulnerability Details

CVE-ID: CVE-2025-9088

Affected Software: Tenda AC20 (and potentially other models sharing the same firmware base)

Affected Versions: Firmware version 16.03.07.16. See vendor advisory for specific affected versions across all product lines.

Vulnerability: The vulnerability is a command injection flaw within the web-based management interface of the affected devices. An unauthenticated attacker on the same local area network (LAN) can send a specially crafted HTTP request to an administrative endpoint. A specific parameter within this request is not properly sanitized before being used in a system-level shell command, allowing the attacker to inject and execute arbitrary commands with root privileges on the device's underlying operating system.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Successful exploitation grants an attacker complete administrative control over the network device, leading to severe business consequences. These include the potential for interception and theft of sensitive data passing through the network, modification of network configurations to redirect users to malicious websites (DNS hijacking), or a complete denial of service. A compromised router can also serve as a persistent foothold for an attacker to launch further attacks against other systems on the internal corporate network.

Remediation Plan

Immediate Action: Apply the security updates provided by the vendor to all affected devices immediately. Before and after patching, it is critical to monitor for any signs of exploitation attempts by reviewing device access logs for unauthorized connections or unusual configuration changes.

Proactive Monitoring: Security teams should actively monitor for anomalous network traffic originating from affected devices, which could indicate a compromise. Review logs for the device's web management interface, specifically looking for malformed POST requests containing shell metacharacters (e.g., ;, |, &&) in input parameters.

Compensating Controls: If patching is not immediately possible, restrict access to the device's web management interface to a limited set of trusted IP addresses using firewall rules or Access Control Lists (ACLs). Ensure that remote (WAN-side) administration is disabled to limit the attack surface.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of August 17, 2025, there is no known public exploit code or active exploitation observed in the wild. However, vulnerabilities of this nature in networking equipment are common targets for threat actors, and a proof-of-concept exploit is likely to emerge quickly.

Analyst Recommendation

Given the high CVSS score and the potential for a complete, unauthenticated takeover of a critical network device, this vulnerability presents a significant risk. We strongly recommend organizations identify all affected devices and prioritize applying the vendor patch immediately. Although CVE-2025-9088 is not currently listed on the CISA KEV catalog, its severity makes it a strong candidate for future inclusion, and proactive remediation is the most effective course of action.

Executive Summary:
A high-severity vulnerability has been identified in multiple Tenda products, including the Tenda AC20 router. Successful exploitation could allow a remote attacker to execute arbitrary code and gain complete control over the affected device. This could lead to network traffic interception, data theft, or using the compromised device to launch further attacks against the internal network.

Vulnerability Details

CVE-ID: CVE-2025-9087

Affected Software: has Multiple Products

Affected Versions: See vendor advisory for specific affected versions. The Tenda AC20 with firmware version 16 is explicitly mentioned.

Vulnerability: This vulnerability is a stack-based buffer overflow in the web management interface of the affected devices. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted HTTP POST request to a specific endpoint on the device's web server. The server fails to properly validate the length of user-supplied input, allowing the attacker to overwrite the stack, control the instruction pointer, and achieve arbitrary code execution with root privileges on the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could lead to a complete compromise of the network device, granting an attacker a strategic foothold within the network perimeter. The potential consequences include interception of sensitive internal and external traffic, unauthorized access to connected systems, deployment of malware, and the ability to launch denial-of-service (DoS) attacks. For the organization, this translates to a high risk of data breaches, operational disruption, financial loss, and significant reputational damage.

Remediation Plan

Immediate Action: Apply vendor security updates immediately to all affected devices. Prioritize patching for devices with management interfaces exposed to the internet. After patching, monitor for any signs of exploitation attempts by reviewing device and network access logs for anomalous activity.

Proactive Monitoring: Security teams should monitor for indicators of compromise, including unexpected outbound connections from network devices, unusual spikes in network traffic, and unauthorized configuration changes. Review device web server logs for malformed or excessively long POST requests, which could indicate scanning or exploitation attempts.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce risk:

• Disable remote (WAN) administration of the device.
• Restrict access to the device's management interface to a dedicated and trusted network segment.
• Ensure a strong, unique administrative password is in use to hinder post-exploitation activities.
• Implement network segmentation to limit the potential impact of a compromised edge device on critical internal assets.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of August 17, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the high severity and the commonality of buffer overflow vulnerabilities in embedded devices, it is highly probable that a proof-of-concept exploit will be developed and released by security researchers or threat actors in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8, this vulnerability poses a significant risk to the organization. It is strongly recommended that all affected Tenda devices are patched immediately, following the vendor's security advisory. Although this CVE is not currently listed on the CISA KEV list, its critical nature warrants immediate attention. Organizations should treat this vulnerability with the highest priority and apply compensating controls where patching cannot be immediately deployed to mitigate the risk of a full network compromise.

Executive Summary:
A critical vulnerability has been identified in multiple products from a classified vendor, allowing an unauthenticated attacker to potentially take full control of affected systems over the network. Successful exploitation of this flaw could lead to data theft, complete service disruption, and provide an attacker with a foothold to launch further attacks against the internal network.

Vulnerability Details

CVE-ID: CVE-2025-8810

Affected Software: classified Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This high-severity vulnerability is likely a pre-authentication command injection or buffer overflow flaw within the web management interface of the affected devices. An unauthenticated attacker on the network could exploit this by sending a specially crafted HTTP request to a vulnerable service. Successful exploitation grants the attacker administrative-level control, allowing for arbitrary code execution on the device's underlying operating system, requiring no prior authentication or user interaction.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could have a significant business impact, as compromised network devices can serve as a pivot point for attackers to move laterally within the corporate environment. Potential consequences include the interception and theft of sensitive data passing through the device, disruption of critical network services (denial of service), and the deployment of malware or ransomware. The risk to the organization is substantial, as a compromised network device undermines the integrity of the entire security posture.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor to all affected products without delay. Due to the critical nature of this vulnerability, this patching activity should be treated as an emergency change. After patching, review device access logs and network traffic for any signs of compromise that may have occurred before the patch was applied.

Proactive Monitoring: Organizations should actively monitor for signs of exploitation. In network and web server logs, look for unusual or malformed requests directed at the device's management interface, especially from untrusted IP addresses. On the device itself, monitor for unexpected outbound connections, high CPU utilization, unauthorized configuration changes, or the presence of suspicious files and processes. IDS/IPS signatures should be updated to detect exploitation attempts.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the attack surface. Ensure the device's management interface is not exposed to the internet. Using firewall rules or access control lists, restrict access to the management interface to a dedicated, trusted administrative network or specific IP addresses.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of August 10, 2025, there are no public reports of active exploitation in the wild, and no proof-of-concept (PoC) exploit code has been publicly released. However, given the high severity and potential for remote code execution, threat actors are likely to begin developing exploits. This vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Given the High severity (CVSS 8.8) of this vulnerability, we strongly recommend that organizations prioritize the immediate patching of all affected systems. The potential for unauthenticated remote code execution presents a critical risk to network integrity and security. While there is no evidence of active exploitation at this time, vulnerabilities of this nature are prime targets for weaponization. Organizations should treat this as a critical priority and apply vendor patches or implement compensating controls immediately to prevent potential compromise.

Executive Summary:
A high-severity vulnerability has been identified in certain Tenda networking products. If exploited, this flaw could allow a remote, unauthenticated attacker to take complete control of the affected device, potentially leading to network-wide disruptions, data theft, and further intrusions into the internal network. Organizations are urged to apply vendor-supplied patches immediately to mitigate this significant risk.

Vulnerability Details

CVE-ID: CVE-2025-7914

Affected Software: Tenda AC6

Affected Versions: Firmware version 15.03.05.15. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This vulnerability is a stack-based buffer overflow within the web server component responsible for handling HTTP requests on the device's management interface. An unauthenticated attacker on the same network segment can send a specially crafted POST request containing an overly long string to a specific configuration parameter. The server fails to properly validate the input length, leading to a buffer overflow that can overwrite the return address on the stack, allowing the attacker to execute arbitrary code with root privileges on the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Successful exploitation would grant an attacker full administrative control over the network router. This could lead to severe consequences, including the interception and theft of sensitive data passing through the network (Man-in-the-Middle attacks), unauthorized access to the internal corporate network, disruption of internet connectivity (Denial of Service), and using the compromised device as a pivot point for launching further attacks against other systems. The risk is particularly high for devices whose management interfaces are exposed to untrusted networks.

Remediation Plan

Immediate Action: Apply the security updates provided by the vendor immediately. Patches should be deployed through the device's web-based management interface or downloaded from the official Tenda support website. After patching, reboot the device and verify that the new firmware version is active.

Proactive Monitoring: Security teams should monitor for exploitation attempts by reviewing device and network logs. Look for anomalous or malformed HTTP POST requests directed at the device's management interface, unexpected outbound connections originating from the router, and unexplained spikes in CPU or memory utilization on the device.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the attack surface:

• Restrict access to the device's web management interface to a dedicated, trusted administrative network or specific IP addresses.
• Disable remote (WAN) management if it is enabled.
• Place the device behind a Web Application Firewall (WAF) or an Intrusion Prevention System (IPS) with signatures capable of detecting and blocking buffer overflow attempts.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of July 20, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. The vulnerability is not listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. However, due to the high CVSS score and the commonality of the affected devices, the likelihood of an exploit being developed in the near future is high.

Analyst Recommendation

Given the high severity (CVSS 8.8) of this vulnerability, we strongly recommend that organizations treat this as a critical priority. The potential for a complete device takeover presents a significant risk to network security and data confidentiality. Although there is no evidence of active exploitation at this time, the risk profile warrants immediate action. All affected Tenda devices should be identified and patched without delay, following the vendor's guidance.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7855, has been discovered in multiple products from a classified vendor. This flaw could allow a remote, unauthenticated attacker to execute arbitrary commands and gain complete control over an affected device, posing a significant risk to the network's confidentiality, integrity, and availability.

Vulnerability Details

CVE-ID: CVE-2025-7855

Affected Software: classified Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The vulnerability is a command injection flaw within the web management interface of the affected devices, as exemplified by the Tenda FH451 product. An unauthenticated attacker with network access to the device can send a specially crafted HTTP request containing malicious shell commands to a vulnerable endpoint. The device's firmware fails to properly sanitize this input, causing the commands to be executed on the underlying operating system with the privileges of the web service, which is often root on these types of embedded systems, leading to a full system compromise.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation allows for a complete takeover of the affected device, which can lead to severe business consequences. These include the theft of sensitive data transiting the network, manipulation of network traffic, and using the compromised device as a pivot point to launch further attacks against the internal corporate network. Furthermore, compromised devices could be incorporated into a botnet for use in large-scale DDoS attacks, causing reputational damage and potential liability.

Remediation Plan

Immediate Action: Immediately apply the security updates provided by the vendor across all affected products. Following the update, it is critical to monitor for any signs of post-patch exploitation attempts and to review historical access logs for indicators of a prior compromise.

Proactive Monitoring: Configure network monitoring to detect and alert on anomalous traffic to or from affected devices. In system and web server logs, search for suspicious requests containing shell metacharacters (e.g., ;, |, &&, $(...)) or unusual command strings. Monitor for unexpected outbound connections or unauthorized processes running on the devices.

Compensating Controls: If immediate patching is not feasible, restrict network access to the management interface of the affected devices. Use firewall rules to ensure that only trusted IP addresses or dedicated management networks can reach the interface. Deploy an Intrusion Prevention System (IPS) with up-to-date signatures to detect and block known command injection attack patterns.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 20, 2025, there are no known publicly available exploit codes for this vulnerability. However, given the nature of command injection flaws, the technical barrier to create a functional exploit is low for a skilled attacker. The vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Given the high severity (CVSS 8.8) and the ability for an unauthenticated attacker to achieve remote code execution, this vulnerability represents a significant and immediate risk to the organization. The remediation of CVE-2025-7855 should be treated as a top priority. While this vulnerability is not yet on the CISA KEV list, its high severity and the potential for a simple exploit mean that active exploitation could begin at any time. Organizations must implement the vendor-supplied patches or apply compensating controls without delay.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7854, has been discovered in multiple Tenda products, including the Tenda FH451 router. This flaw could allow a remote attacker to execute arbitrary code on an affected device, potentially leading to a complete system compromise. Successful exploitation could grant an attacker full control over the network device, enabling them to intercept traffic, attack other systems on the network, or disrupt network availability.

Vulnerability Details

CVE-ID: CVE-2025-7854

Affected Software: Tenda Multiple Products

Affected Versions: The Tenda FH451 router (firmware version 1 and potentially prior versions) is confirmed to be affected. See the vendor advisory for a specific list of all affected products and versions.

Vulnerability: This vulnerability is a command injection flaw within the device's web management interface. An attacker can send a specially crafted HTTP request containing malicious shell commands to a specific endpoint on the web server. The input is not properly sanitized, allowing the injected commands to be executed on the underlying operating system with root-level privileges, resulting in a full compromise of the device.

Business Impact

This vulnerability presents a High risk to the organization, reflected by its CVSS score of 8.8. Exploitation could lead to severe consequences, including the breach of confidential data as an attacker could monitor all network traffic passing through the compromised device. An attacker could also use the device as a pivot point to launch further attacks against internal network assets, disable network connectivity causing operational downtime, or incorporate the device into a botnet for use in larger-scale attacks like Distributed Denial of Service (DDoS).

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately. Due to the high risk of remote exploitation, patching of internet-facing or otherwise exposed devices should be prioritized. After patching, verify that the update was successful and the device is running the secure firmware version.

Proactive Monitoring: Organizations should actively monitor for signs of exploitation. Review device access logs for unusual or malformed requests to the web management interface. Monitor network traffic for unexpected outbound connections originating from the network devices themselves. System monitoring should be configured to alert on abnormal spikes in CPU or memory utilization, which could indicate the execution of malicious code.

Compensating Controls: If immediate patching is not feasible, implement the following compensating controls to reduce the risk of exploitation:

• Restrict access to the device's management interface to a dedicated, trusted network segment or VLAN.
• Disable remote (WAN) administration access if it is not essential for business operations.
• Ensure a strong, unique administrative password is in use to hinder unauthorized access attempts.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of July 20, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, vulnerabilities in widely used SOHO/SME router products are frequently targeted by threat actors. It is highly probable that an exploit will be developed by reverse-engineering the vendor's patch.

Analyst Recommendation

Given the High severity (CVSS 8.8) and the potential for complete device compromise, we strongly recommend that organizations treat this vulnerability with high urgency. Although CVE-2025-7854 is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its characteristics make it a prime candidate for future exploitation. Organizations should immediately identify all affected devices within their environment and execute the remediation plan, prioritizing the application of vendor-supplied patches to eliminate the risk.

Executive Summary:
A high-severity vulnerability has been identified in software from the vendor 'was', impacting multiple products, including the Tenda FH451 router. This flaw could allow a remote, unauthenticated attacker to gain complete control over affected devices. Successful exploitation poses a significant risk of network compromise, data theft, and operational disruption, requiring immediate attention.

Vulnerability Details

CVE-ID: CVE-2025-7853

Affected Software: was Multiple Products

Affected Versions: See vendor advisory for specific affected versions. The initial report identified Tenda FH451 firmware version 1 as vulnerable.

Vulnerability: The vulnerability is a critical flaw, likely an unauthenticated command injection or buffer overflow in the device's web management interface. An unauthenticated attacker on the same network (or remotely, if the management interface is exposed to the internet) can send a specially crafted HTTP request to a vulnerable endpoint. This request can inject and execute arbitrary operating system commands with the highest privileges on the device, effectively giving the attacker full administrative control.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could have a severe impact on the business by allowing an attacker to compromise a key network device. Potential consequences include, but are not limited to, eavesdropping on network traffic to steal sensitive information (loss of confidentiality), modifying system configurations to redirect traffic or disable security features (loss of integrity), and creating a persistent backdoor for future attacks. A compromised network device can serve as a pivot point for an attacker to move laterally across the internal network, escalating the incident from a single device compromise to a full-scale organizational breach.

Remediation Plan

Immediate Action:
Organizations must immediately identify all affected devices within their environment and apply the security updates provided by the vendor. The primary remediation is to patch the system firmware or software to the recommended secure version. After patching, system administrators should verify that the update was successfully applied and that the device is functioning as expected.

Proactive Monitoring:
Continuously monitor network traffic to and from affected devices for any signs of compromise. Security teams should review device access logs and system logs for unusual activity, such as unexpected reboots, configuration changes, or outbound connections to unknown IP addresses. Implement network intrusion detection system (IDS) rules to look for signatures associated with command injection attempts (e.g., shell metacharacters like ;, |, && in URLs or API calls).

Compensating Controls:
If immediate patching is not feasible, implement the following compensating controls to reduce the risk of exploitation:

• Restrict access to the device's management interface to a dedicated and secure administrative network.
• Disable remote/WAN management on all affected devices.
• If applicable, place a Web Application Firewall (WAF) in front of the device to filter malicious web requests.
• Implement network segmentation to isolate the affected devices and limit the potential impact of a compromise.

Exploitation Status

Public Exploit Available: false

Analyst Notes:
As of July 20, 2025, there are no known public exploits actively targeting this vulnerability. However, due to the high CVSS score and the likely simplicity of exploitation, it is highly probable that a functional proof-of-concept (PoC) exploit will be developed and released by security researchers or malicious actors in the near future. The initial CVE description specifically mentions the Tenda FH451, but the vendor is listed as 'was' with 'Multiple Products', indicating the vulnerability may be present in a shared codebase affecting other products; organizations should consult the vendor's advisory for a complete list.

Analyst Recommendation
Given the high severity (CVSS 8.8) of this vulnerability, we strongly recommend that organizations treat this as a critical priority. Although CVE-2025-7853 is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its characteristics make it a prime candidate for future inclusion and widespread exploitation. All organizations must immediately execute the Remediation Plan, focusing on patching systems without delay. If patching is not possible, implement compensating controls and heighten monitoring until a permanent fix can be applied.

Executive Summary:
A high-severity vulnerability has been identified in multiple products from the vendor 'was', which could allow an unauthenticated attacker to take complete control of affected systems over the network. Successful exploitation could lead to a full system compromise, resulting in data theft, service disruption, and the potential for attackers to move further into the corporate network. Organizations are urged to apply vendor-supplied patches immediately to mitigate this critical risk.

Vulnerability Details

CVE-ID: CVE-2025-7550

Affected Software: was Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability is an unauthenticated remote command injection flaw in a core service component present across multiple 'was' products. An attacker can exploit this by sending a specially crafted network request to a vulnerable API endpoint. Due to insufficient input validation, the request can inject and execute arbitrary operating system commands with the privileges of the running service, leading to a complete compromise of the affected device or server.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation of this flaw poses a significant risk to the organization, potentially leading to the complete loss of confidentiality, integrity, and availability of the affected systems. Consequences include unauthorized access to sensitive data, installation of ransomware or other malware, disruption of critical business operations, and reputational damage. The compromised system could also be used as a pivot point for further attacks against the internal network.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately across all affected assets. Prioritize patching for systems that are exposed to the internet. After patching, it is crucial to review system and access logs for any signs of compromise that may have occurred before the patch was applied.

Proactive Monitoring: Security teams should actively monitor for signs of exploitation. This includes inspecting network traffic for unusual requests to the affected services, particularly those containing shell metacharacters (e.g., |, ;, &&). Monitor system logs for unexpected processes being launched by the service account and review web access logs for anomalous request patterns that match exploit attempts.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the risk. Restrict network access to the vulnerable service to only trusted hosts and networks. If applicable, deploy a Web Application Firewall (WAF) or Intrusion Prevention System (IPS) with virtual patching rules designed to block exploit attempts against this specific CVE.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high CVSS score and the relative simplicity of command injection flaws, it is highly probable that a functional exploit will be developed and published by security researchers or threat actors in the near future. The vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Due to the high severity (CVSS 8.8) of this vulnerability, we strongly recommend that organizations treat its remediation as a top priority. The potential for unauthenticated remote code execution presents a critical risk. All organizations using affected 'was' products should immediately begin the patch management process, focusing first on internet-facing systems. If patching is delayed, the compensating controls outlined above must be implemented as an urgent temporary measure.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7549, has been discovered in specific networking products. This flaw could allow a remote attacker to gain complete control over an affected device, potentially leading to significant network disruption, data interception, and unauthorized access to internal systems. Organizations are urged to apply vendor-supplied security updates immediately to mitigate the substantial risk posed by this vulnerability.

Vulnerability Details

CVE-ID: CVE-2025-7549

Affected Software: was Multiple Products

Affected Versions: The vulnerability is confirmed in Tenda FH1201 version 1. See vendor advisory for a complete list of all affected products and versions.

Vulnerability: The vulnerability is a critical flaw within the device's web management interface. A remote, unauthenticated attacker can exploit this by sending a specially crafted HTTP request to the device. Successful exploitation could lead to arbitrary command injection, allowing the attacker to execute commands on the underlying operating system with the highest level of privileges (root), effectively granting them full control over the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could have a severe impact on business operations. A compromised network device can serve as a pivot point for attackers to launch further attacks against the internal network, leading to data breaches, ransomware deployment, or widespread service outages. Specific risks include the interception of sensitive network traffic, loss of network connectivity for critical business functions, and the reputational damage resulting from a security incident.

Remediation Plan

Immediate Action: Immediately identify all affected devices within the environment and apply the security updates provided by the vendor. Before deployment, test the patches in a non-production environment to ensure compatibility. After patching, verify that the update was successfully installed and the vulnerability is remediated.

Proactive Monitoring: Enhance monitoring of network traffic to and from affected devices. Specifically, look for unusual requests to the web management interface, unexpected outbound connections from the device, or anomalous configuration changes. Review device-level logs for signs of unauthorized access, command execution, or system errors that could indicate an exploitation attempt.

Compensating Controls: If immediate patching is not possible, implement compensating controls to reduce the attack surface. Restrict access to the device's management interface to a dedicated, secure management network or a limited set of trusted IP addresses using firewall rules. If not essential for remote administration, disable external access to the management interface entirely.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of July 13, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high CVSS score and the potential for remote code execution, it is highly likely that threat actors will develop and deploy exploits in the near future. The vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Due to the high severity of CVE-2025-7549 and the risk of complete system compromise, we strongly recommend that organizations treat this vulnerability as a critical priority. The remediation plan should be executed immediately. Although there is no evidence of active exploitation at this time, the risk profile of this vulnerability warrants urgent action. If patching cannot be performed immediately, the compensating controls outlined above must be implemented as a temporary measure to mitigate risk.

Executive Summary:
A high-severity vulnerability has been identified in multiple Tenda products, notably the FH1201 router. This flaw could allow a remote, unauthenticated attacker to take complete control of affected devices, potentially leading to data theft, network disruption, or using the compromised device to attack other systems. Organizations using affected Tenda products are at significant risk and should apply vendor patches immediately.

Vulnerability Details

CVE-ID: CVE-2025-7548

Affected Software: Tenda Multiple Products (including FH1201)

Affected Versions: The vulnerability is confirmed in Tenda FH1201 firmware version 1. See vendor advisory for a complete list of all affected products and versions.

Vulnerability: This vulnerability is a remote command injection flaw in the device's web-based management interface. An unauthenticated attacker can send a specially crafted HTTP request to the device, injecting arbitrary operating system commands. These commands are executed on the underlying system with root privileges, granting the attacker full control over the device. Exploitation does not require any user interaction and can be performed remotely over the network.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Successful exploitation would grant an attacker complete control over the network device. This could lead to severe business consequences, including the interception of sensitive network traffic, unauthorized access to internal network segments, and denial of service (DoS) conditions. Compromised routers could also be incorporated into a botnet for use in larger-scale attacks against other organizations, causing significant reputational damage.

Remediation Plan

Immediate Action: Apply vendor security updates immediately. The vendor has released patched firmware versions that address this vulnerability. After applying the update, it is critical to review device configurations and access logs for any signs of prior compromise.

Proactive Monitoring: Monitor for exploitation attempts by reviewing web server access logs on the device's management interface for unusual or malformed requests. Network traffic should be monitored for unexpected outbound connections from the routers to unknown IP addresses. Implement intrusion detection system (IDS) rules to detect and alert on command injection signatures targeting the affected devices.

Compensating Controls: If immediate patching is not feasible, restrict access to the device's web management interface to a trusted internal network or specific IP addresses using firewall rules. If remote management is necessary, ensure it is done over a secure channel like a VPN. Disable Universal Plug and Play (UPnP) if not essential to business operations.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, due to the low complexity of exploitation for command injection flaws, it is highly probable that a reliable exploit will be developed and released by security researchers or malicious actors in the near future.

Analyst Recommendation

Given the high severity (CVSS 8.8) and the potential for complete system compromise from an unauthenticated attacker, this vulnerability presents a critical risk. We strongly recommend that all available patches be applied on an emergency basis. Although this vulnerability is not currently listed on the CISA KEV catalog, its characteristics make it a prime candidate for future inclusion. Organizations must act now to mitigate this risk before active exploitation begins.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7544, has been discovered in multiple products from the vendor "was," with a specific Tenda router model confirmed to be affected. With a CVSS score of 8.8, this flaw could allow a remote attacker to gain complete control over vulnerable devices. Successful exploitation poses a significant risk of data theft, network disruption, and unauthorized access to internal corporate resources.

Vulnerability Details

CVE-ID: CVE-2025-7544

Affected Software: was Multiple Products

Affected Versions: See vendor advisory for specific affected versions. The Tenda AC1206 with firmware version 15 is a known affected product.

Vulnerability: This vulnerability allows for potential remote code execution on affected devices. Based on the high CVSS score and the nature of the affected product (a network router), the flaw likely resides in the device's web management interface. An unauthenticated attacker on the network could potentially send a specially crafted HTTP request, triggering a condition like a buffer overflow or command injection, to execute arbitrary code with administrative privileges on the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could have a severe impact on business operations. An attacker who gains control of a core network device can intercept sensitive network traffic, including credentials and confidential data, leading to a major data breach. Furthermore, the attacker could disrupt network connectivity, causing a denial of service, or use the compromised device as a beachhead to launch further attacks against other systems on the internal network, significantly escalating the scope of the incident.

Remediation Plan

Immediate Action: Apply vendor security updates immediately across all affected devices. Prioritize patching for devices with management interfaces exposed to the internet. After patching, continue to monitor for any signs of exploitation attempts that may have occurred prior to remediation and review device access logs for any unauthorized activity.

Proactive Monitoring: Security teams should actively monitor network traffic to and from the management interfaces of affected devices for anomalous patterns or malicious payloads. In system and firewall logs, search for unauthorized access attempts from unfamiliar IP addresses, unexpected device reboots, or unexplained configuration changes, which could indicate a successful compromise.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the attack surface. Disable remote/WAN administration of the device, and restrict access to the management interface to a dedicated, trusted administrative VLAN or network segment. If possible, place a Web Application Firewall (WAF) in front of the device to inspect and block malicious requests targeting the vulnerability.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there are no known public exploit codes or active exploitation campaigns targeting this vulnerability. However, due to the high severity score, it is highly likely that security researchers and threat actors are actively developing exploits. This vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Given the high severity of CVE-2025-7544, we recommend immediate and decisive action. Organizations using affected "was" products, including the specifically identified Tenda AC1206 model, must treat this as a critical priority. The primary course of action is to apply the vendor-supplied security patches without delay. While this CVE is not currently on the CISA KEV list, its 8.8 CVSS score indicates a critical risk profile that warrants an urgent response to prevent potential network compromise and data breaches.

Executive Summary:
A high-severity vulnerability has been identified in multiple Tenda networking products, including the Tenda FH1202 router. Successful exploitation by a remote attacker could allow for complete device compromise, leading to unauthorized network access, data interception, and the ability to launch further attacks against the internal network. Organizations are urged to apply vendor-supplied security updates immediately to mitigate this significant risk.

Vulnerability Details

CVE-ID: CVE-2025-7532

Affected Software: Tenda Multiple Products

Affected Versions: Tenda FH1202 firmware version 1.x. See vendor advisory for a complete list of affected products and versions.

Vulnerability: The vulnerability is a command injection flaw within the device's web-based management interface. Due to insufficient sanitization of user-supplied input on certain configuration pages, a remote, unauthenticated attacker can execute arbitrary operating system commands on the device. An attacker can exploit this by sending a specially crafted HTTP request to the management interface, gaining root-level control over the underlying operating system.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could lead to severe business consequences, including a complete loss of confidentiality, integrity, and availability of the affected network device. An attacker could intercept sensitive data passing through the router, modify network traffic, use the compromised device as a pivot point to attack other systems on the internal network, or incorporate the device into a botnet for use in Distributed Denial-of-Service (DDoS) attacks. The specific risks to the organization include data breaches, network outages, reputational damage, and potential regulatory penalties.

Remediation Plan

Immediate Action:

• Apply vendor security updates immediately across all affected Tenda devices.
• Monitor for exploitation attempts by analyzing network traffic and system logs for anomalous activity targeting the device's management interface.
• Review historical access logs for any signs of compromise that may have occurred prior to patching.

Proactive Monitoring:

• Monitor firewall and web server logs for unusual or malformed HTTP requests directed at the device's management interface.
• Look for unexpected outbound connections originating from the router itself, which could indicate a compromise.
• Enable logging on the device and centralize logs to a SIEM for correlation and alerting on suspicious activity.

Compensating Controls:

• If patching cannot be performed immediately, restrict all access to the device's web management interface to a secure, isolated management network or specific trusted IP addresses.
• Ensure that remote (WAN) management is disabled. The management interface should never be exposed to the public internet.
• Place the device behind a Web Application Firewall (WAF) or an Intrusion Prevention System (IPS) with rules designed to detect and block command injection attacks.

Exploitation Status

Public Exploit Available: false

Analyst Notes:
As of July 13, 2025, there are no known public exploits or reports of active exploitation in the wild for this vulnerability. However, given the high CVSS score and the straightforward nature of command injection flaws, it is highly probable that a functional proof-of-concept (PoC) exploit will be developed and released by security researchers or threat actors in the near future.

Analyst Recommendation
Due to the high severity (CVSS 8.8) of this vulnerability, we recommend that organizations treat its remediation as a top priority. Although CVE-2025-7532 is not currently listed on the CISA KEV catalog, its potential for complete remote device compromise makes it a critical threat. Organizations must immediately identify all vulnerable Tenda devices within their environments and apply the vendor-provided patches without delay. If patching is not immediately feasible, implement the suggested compensating controls to reduce the attack surface and mitigate risk.

Executive Summary:
A critical vulnerability has been discovered in multiple products from Vendor A, assigned CVE-2025-7531. Successful exploitation could allow a remote attacker with basic user credentials to gain complete control over affected systems. This could lead to significant data breaches, service disruption, and further intrusions into the corporate network.

Vulnerability Details

CVE-ID: CVE-2025-7531

Affected Software: A Multiple Products

Affected Versions: See vendor advisory for specific affected versions.

Vulnerability: This vulnerability is a post-authentication command injection flaw within the web management interface of the affected products. An authenticated attacker with low-level privileges can send a specially crafted HTTP request containing arbitrary commands to a vulnerable endpoint. Due to insufficient input validation, these commands are executed by the underlying operating system with elevated privileges, allowing the attacker to achieve remote code execution and gain full administrative control of the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could have a severe business impact, including the compromise of sensitive corporate and customer data, leading to regulatory fines and reputational damage. An attacker could also disrupt critical business operations by disabling the affected systems or use them as a pivot point to launch further attacks against the internal network, escalating the scope of the breach.

Remediation Plan

Immediate Action: Apply the security updates provided by Vendor A immediately across all affected assets. Prioritize patching for internet-facing systems and those that support critical business functions. Concurrently, security teams should actively monitor for any signs of exploitation attempts by reviewing web server and system access logs for anomalous activity.

Proactive Monitoring: Implement enhanced monitoring on affected systems. Security teams should look for suspicious POST requests to the web management interface, unexpected outbound network connections from the devices, and unusual processes or command execution in system-level logs. Network Intrusion Detection/Prevention Systems (IDS/IPS) should be updated with signatures to detect and block known exploit patterns for this vulnerability.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to mitigate risk. Restrict network access to the device's management interface to a secure, isolated management network or a limited set of trusted IP addresses. If possible, deploy a Web Application Firewall (WAF) in front of the affected systems to inspect and block malicious web requests.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of the publication date, July 13, 2025, there are no known public proof-of-concept exploits or observed in-the-wild attacks targeting this vulnerability. However, given the high severity score and the relative simplicity of exploitation (post-authentication command injection), it is highly probable that threat actors will reverse-engineer the vendor patch to develop a working exploit in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8, immediate action is required. We strongly recommend that all affected Vendor A products are patched immediately, following a risk-based approach that prioritizes internet-facing and critical systems. Although this vulnerability is not currently listed on the CISA KEV list, its high impact makes it a prime candidate for future inclusion should widespread exploitation occur. If patching is delayed, the compensating controls outlined above must be implemented as a temporary measure to reduce the attack surface.

Executive Summary:
A critical vulnerability has been identified in multiple products from Vendor A, carrying a CVSS score of 8.8. This flaw could allow a remote, unauthenticated attacker to execute arbitrary code on affected devices, leading to a complete system compromise. Successful exploitation could result in network disruption, data theft, and the use of compromised systems to launch further attacks.

Vulnerability Details

CVE-ID: CVE-2025-7530

Affected Software: A Multiple Products

Affected Versions: See vendor advisory for specific affected versions. The initial report identified Tenda FH1202 version 1 as an example of an affected product.

Vulnerability: The vulnerability is a command injection flaw in the web-based management interface of the affected devices. An unauthenticated attacker on the same network (or remotely, if the management interface is exposed to the internet) can send a specially crafted HTTP request to the device. The device's firmware fails to properly sanitize user-supplied input, allowing the attacker to inject and execute arbitrary operating system commands with the privileges of the web server, which are typically root-level on these types of embedded devices.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit would grant an attacker complete control over the affected network device. The business impact could be severe, including the interception of sensitive network traffic, unauthorized access to internal network segments, and disruption of critical business operations due to network outages. Compromised devices could also be co-opted into a botnet for use in Distributed Denial-of-Service (DDoS) attacks, causing reputational damage and potential legal liability.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by Vendor A immediately. Patching is the most effective way to eliminate the vulnerability. After patching, organizations should continue to monitor for any signs of compromise that may have occurred prior to the update.

Proactive Monitoring: System administrators should actively monitor for signs of exploitation. This includes reviewing web server access logs on the affected devices for unusual or malformed requests, especially those containing shell metacharacters (e.g., ;, |, &&). Network monitoring should be configured to detect anomalous outbound traffic from the devices, and system performance metrics (CPU, memory) should be monitored for unexpected spikes.

Compensating Controls: If patching cannot be performed immediately, organizations should implement compensating controls to reduce the risk. Restrict network access to the device's management interface to a secure, dedicated management VLAN or specific trusted IP addresses. If not required for business operations, disable remote (WAN) administration entirely.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there is no known public proof-of-concept exploit code, and the vulnerability is not reported to be under active exploitation. However, given the critical nature and low complexity of the flaw, it is highly likely that threat actors will reverse-engineer the vendor patch to develop a working exploit. The vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation
Given the high CVSS score of 8.8 and the potential for complete remote system compromise, this vulnerability poses a significant risk to the organization. We strongly recommend that all affected products are identified and patched immediately as a top priority. If patching must be delayed, the compensating controls outlined above, particularly restricting access to the management interface, must be implemented without delay. Organizations should assume this vulnerability will be exploited in the near future and act accordingly to mitigate the threat.

Executive Summary:
A high-severity vulnerability has been identified in multiple products from a vendor designated as "classified." Successful exploitation could allow a remote, unauthenticated attacker to gain complete control over affected systems. This could lead to significant data breaches, service disruptions, and further network compromise.

Vulnerability Details

CVE-ID: CVE-2025-7529

Affected Software: classified Multiple Products

Affected Versions: See vendor advisory for specific affected versions.

Vulnerability: This vulnerability allows a remote, unauthenticated attacker to execute arbitrary code on a target system. Based on the high CVSS score, the attack vector is likely through the network, requiring no user interaction or prior authentication. An attacker could exploit this by sending a specially crafted packet or series of packets to an exposed service on an affected device, such as the Tenda FH1202 router which is noted as one of the affected products. A successful exploit would result in a complete compromise of the device, granting the attacker full administrative control.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8, posing a significant risk to the organization. Exploitation could lead to the complete compromise of confidentiality, integrity, and availability of the affected systems. Potential consequences include the exfiltration of sensitive corporate or customer data, deployment of ransomware, or the use of the compromised system as a staging point to attack other internal network resources. The resulting business impact includes potential financial loss, regulatory fines, reputational damage, and disruption to critical business operations.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately across all identified affected systems. After patching, organizations should actively monitor for any signs of post-patch exploitation attempts and thoroughly review system and network access logs for any anomalous activity that occurred prior to the patch deployment.

Proactive Monitoring: Implement enhanced monitoring for affected assets. Security teams should look for unusual outbound network connections, unexpected processes or services running on the devices, and an increase in malformed requests in web or application logs. Utilize network intrusion detection systems (NIDS) to alert on traffic patterns matching known or potential exploit techniques for remote code execution.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the risk. Restrict network access to the management interfaces of affected devices using firewalls, allowing connections only from trusted administrative subnets. Employ network segmentation to isolate affected systems from critical network segments. If available, apply virtual patching rules on an Intrusion Prevention System (IPS) to block exploit attempts at the network level.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there is no known public proof-of-concept exploit code, and the vulnerability is not reported to be actively exploited in the wild. The vulnerability is not listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. However, given the high severity and potential for remote code execution, it is highly probable that security researchers or threat actors will develop an exploit.

Analyst Recommendation

Given the high-severity CVSS score of 8.8 and the risk of complete system compromise, this vulnerability requires immediate attention. We strongly recommend that organizations prioritize the identification of all affected "classified" products within their environment and deploy the vendor-supplied security patches without delay. Although there is no current evidence of active exploitation, the severity of this vulnerability makes it a prime target for future attacks. Proactive patching is the most effective strategy to prevent potential compromise.

Executive Summary:
A high-severity vulnerability has been identified in multiple products from a classified vendor, posing a significant security risk. Successful exploitation by an unauthenticated attacker could allow for complete system compromise, potentially leading to data theft, service disruption, or further network intrusion. Organizations are urged to apply vendor-supplied security updates immediately to mitigate this critical threat.

Vulnerability Details

CVE-ID: CVE-2025-7528

Affected Software: classified Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability is an unauthenticated command injection flaw. A specific API endpoint within the device's web management interface fails to properly sanitize user-supplied input. An unauthenticated attacker with network access to the device can send a specially crafted request to this endpoint, injecting arbitrary operating system commands that are then executed on the underlying system with root-level privileges.

Business Impact

This vulnerability presents a High severity risk to the organization, reflected by its CVSS score of 8.8. Exploitation could lead to a complete compromise of the affected systems, granting an attacker full administrative control. Potential consequences include the exfiltration of sensitive corporate or customer data, deployment of ransomware, installation of persistent backdoors, or using the compromised asset as a pivot point to launch further attacks against the internal network. The resulting business impact could include significant financial loss, regulatory fines, reputational damage, and extended operational downtime.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor across all affected products without delay. After patching, it is crucial to monitor systems for any signs of post-remediation exploitation attempts and review historical access logs for indicators of compromise that may have occurred prior to patching.

Proactive Monitoring: Implement enhanced monitoring for affected devices. Security teams should look for unusual outbound network traffic, unexpected processes or services running on the systems, and suspicious requests in web server or API logs, particularly those containing shell metacharacters (e.g., |, &, ;, $()). Configure security information and event management (SIEM) alerts to detect and respond to these patterns in real-time.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Restrict access to the device's management interface to a secure, isolated management network.
• Deploy a Web Application Firewall (WAF) with rules designed to block command injection attempts against the known vulnerable endpoint.
• Implement network segmentation to prevent compromised devices from accessing other critical assets on the network.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there is no known publicly available exploit code for this vulnerability. However, given the high severity (CVSS 8.8) and the relative simplicity of exploiting command injection flaws, it is highly probable that threat actors will develop a functional exploit in the near future. This vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Given the critical nature of this vulnerability, we strongly recommend that organizations prioritize immediate remediation. The CVSS score of 8.8 indicates a high likelihood of successful exploitation leading to severe impact. Although there is no evidence of active exploitation at this time, the risk profile will increase significantly once a public exploit becomes available. All organizations using the affected products should apply the vendor-provided patches as their highest priority. If patching is delayed for any reason, the compensating controls outlined above must be implemented immediately to reduce the attack surface.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7527, has been discovered in multiple products from the vendor 'was'. This critical flaw could allow a remote, unauthenticated attacker to execute arbitrary commands and gain full control of affected systems. Organizations using the impacted software face a significant risk of system compromise, data breaches, and operational disruption.

Vulnerability Details

CVE-ID: CVE-2025-7527

Affected Software: was Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The vulnerability is a critical command injection flaw within the web management interface of the affected products. An unauthenticated attacker on the same network can exploit this by sending a specially crafted HTTP request to a specific API endpoint. Successful exploitation allows the attacker to execute arbitrary operating system commands with the privileges of the device, which could be administrative or root-level, leading to a complete system compromise.

Business Impact

This vulnerability poses a high-risk threat to the organization, as indicated by its High severity rating with a CVSS score of 8.8. Successful exploitation could lead to a complete compromise of the affected systems, allowing an attacker to exfiltrate sensitive data, install malware or ransomware, disrupt critical business operations, or use the compromised device as a pivot point to attack other systems within the network. The direct business impacts include the potential for significant data loss, financial costs associated with incident response, and severe reputational damage.

Remediation Plan

Immediate Action: Apply the security updates provided by the vendor ('was') to all affected products immediately. This is the most effective method for mitigating the vulnerability. After patching, system administrators should verify that the update has been successfully applied across all relevant assets.

Proactive Monitoring: Security teams should actively monitor for signs of compromise. Review web server access logs on affected devices for unusual or malformed HTTP requests, particularly those directed at the management interface. Monitor network traffic for unexpected outbound connections from these devices, which could indicate a successful breach. Ensure Intrusion Detection/Prevention Systems (IDS/IPS) are updated with signatures for CVE-2025-7527.

Compensating Controls: If patching cannot be performed immediately, implement compensating controls to reduce the attack surface. Restrict network access to the device's management interface, allowing connections only from a trusted management network or specific IP addresses. If possible, deploy a Web Application Firewall (WAF) with rules to inspect traffic and block potential command injection attacks.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 13, 2025, there is no known publicly available exploit code for CVE-2025-7527. However, given the high severity and nature of the flaw, it is highly likely that exploit code will be developed by security researchers or threat actors. This vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, indicating no widespread exploitation has been observed.

Analyst Recommendation

Given the high severity (CVSS 8.8) of this vulnerability, immediate remediation is strongly recommended. Organizations must prioritize the deployment of vendor-supplied security patches to all affected systems to prevent potential exploitation. Although this CVE is not yet on the CISA KEV list, the risk of an unauthenticated remote attacker gaining complete control of a system is critical. Proactive patching is the most effective defense and should be completed with urgency.

Executive Summary:
A high-severity vulnerability has been identified in Tenda O3V2 networking equipment, which could allow a remote attacker to gain control over the affected device. Successful exploitation could lead to a complete network compromise, enabling the attacker to eavesdrop on network traffic, attack other internal systems, or disrupt network availability. Organizations are urged to apply the vendor-provided security updates immediately to mitigate this critical risk.

Vulnerability Details

CVE-ID: CVE-2025-7420

Affected Software: Tenda O3V2

Affected Versions: Firmware version 1.0. See vendor advisory for a complete list of affected versions.

Vulnerability: The vulnerability is a command injection flaw within the web management interface of the Tenda O3V2 firmware. An attacker with access to the management interface can send a specially crafted HTTP request containing arbitrary operating system commands to a specific function. The input is not properly sanitized before being passed to a system shell, resulting in the execution of the attacker's commands with the privileges of the web server process, which are typically root-level on this type of device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8, posing a significant risk to the organization. An attacker who successfully exploits this flaw can gain complete control over the network device, compromising network integrity, confidentiality, and availability. Potential consequences include sniffing sensitive data transmitted over the network, using the device as a pivot point to attack other internal resources, modifying network traffic, or launching denial-of-service attacks that could cripple business operations.

Remediation Plan

Immediate Action: Apply the security patches released by the vendor to all affected devices immediately. After patching, monitor network traffic and device logs for any unusual activity or potential signs of exploitation that may have occurred prior to remediation. Review historical access logs for unauthorized access attempts to the device's management interface.

Proactive Monitoring: Implement enhanced monitoring for affected devices. Specifically, look for unusual outbound connections from the devices, unexpected reboots or system changes, and suspicious patterns in web access logs, such as long or abnormally formatted strings in URL parameters or POST requests. Forward device logs to a central SIEM for correlation and alerting.

Compensating Controls: If patching cannot be performed immediately, restrict access to the device's web management interface to a dedicated and trusted administrative network or specific IP addresses. If the management interface must be exposed, place it behind a Web Application Firewall (WAF) with rules designed to block command injection attacks.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of July 10, 2025, there are no known public proof-of-concept exploits or observed in-the-wild attacks targeting this vulnerability. However, due to the high severity score and the relative simplicity of exploiting command injection flaws, it is highly likely that a functional exploit will be developed by security researchers and threat actors in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8, this vulnerability represents a critical threat to the network infrastructure. Although CVE-2025-7420 is not currently listed on the CISA KEV catalog, its severity warrants immediate attention. We strongly recommend that organizations identify all vulnerable Tenda devices within their environment and prioritize the deployment of vendor-supplied patches without delay. Proactive monitoring and the application of compensating controls should be considered mandatory until all systems are confirmed to be patched and secure.

Here is the security assessment in the specified format.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7419, has been discovered in multiple products from the vendor 'was'. This flaw could potentially allow a remote, unauthenticated attacker to compromise affected systems, leading to a complete loss of confidentiality, integrity, and availability. Organizations using the affected software are at significant risk of data breaches, system takeovers, and service disruptions.

Vulnerability Details

CVE-ID: CVE-2025-7419

Affected Software: was Multiple Products

Affected Versions: See vendor advisory for specific affected versions.

Vulnerability: This vulnerability allows a remote attacker to execute arbitrary code on a targeted system. While specific technical details are limited, the high CVSS score suggests the flaw likely exists in a core function accessible without prior authentication. An attacker could exploit this by sending a specially crafted network request to a vulnerable device, which would trigger the flaw and grant them control over the system.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Successful exploitation could lead to a complete system compromise, allowing an attacker to install malware, exfiltrate sensitive data, disrupt critical business operations, or use the compromised system as a pivot point to attack other internal network resources. The potential business impact includes significant financial loss from operational downtime, costs associated with incident response, reputational damage, and potential regulatory penalties depending on the data compromised.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately. Due to the high risk of remote exploitation, patching of internet-facing systems should be prioritized. After patching, review system and access logs for any signs of compromise that may have occurred before the update was applied.

Proactive Monitoring: Implement enhanced monitoring for affected systems. Security teams should look for unusual outbound network traffic, unexpected processes or services running on the devices, and anomalous login attempts or administrative actions in access logs. Configure network security monitoring tools and SIEM platforms to alert on any signatures or behavioral patterns related to this vulnerability.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the risk. Restrict network access to the management interfaces of affected devices to a trusted internal network segment using firewalls or network access control lists (ACLs). Deploy an Intrusion Prevention System (IPS) with virtual patching signatures capable of detecting and blocking exploit attempts against this vulnerability.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 10, 2025, there is no known public proof-of-concept exploit code or evidence of this vulnerability being actively exploited in the wild. However, given its high severity and potential for remote code execution, it is highly likely that threat actors will prioritize developing an exploit. This vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Given the high CVSS score of 8.8, this vulnerability represents a critical risk to the organization. The potential for unauthenticated remote code execution requires immediate attention. We strongly recommend that organizations identify all affected 'was' products within their environment and apply the vendor-supplied security patches on an emergency basis. While this CVE is not yet on the CISA KEV list, its severity makes it a prime candidate for future exploitation, and proactive remediation is essential to prevent a potential security breach.

Executive Summary:
A high-severity vulnerability has been discovered in Tenda O3V2 firmware, which could allow an unauthenticated remote attacker to gain full control over the affected network device. Successful exploitation could lead to a complete compromise of the device, potentially allowing attackers to intercept network traffic, launch further attacks against the internal network, or disrupt critical network services.

Vulnerability Details

CVE-ID: CVE-2025-7418

Affected Software: Tenda O3V2

Affected Versions: Firmware version 1.0.0.1 and prior. See vendor advisory for a complete list.

Vulnerability: The vulnerability exists due to a stack-based buffer overflow in the web server component responsible for handling POST requests to a specific administrative endpoint. An unauthenticated remote attacker can exploit this by sending a specially crafted HTTP POST request with an overly long parameter value. This action overwrites the stack, allowing the attacker to corrupt memory and execute arbitrary code on the device with root privileges, leading to a complete system compromise.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit would grant an attacker complete control over the affected network device. This could lead to significant business disruption, including the interception of sensitive data traversing the network, loss of network connectivity, and the use of the compromised device as a pivot point to launch further attacks against internal systems. The reputational damage and potential regulatory fines resulting from a data breach originating from this vulnerability present a substantial risk to the organization.

Remediation Plan

Immediate Action: Organizations must immediately apply the security patches provided by the vendor to all affected Tenda O3V2 devices. After patching, system administrators should verify that the update was applied successfully and the device is running a fixed firmware version.

Proactive Monitoring: Security teams should actively monitor for signs of exploitation. This includes reviewing web server access logs on the Tenda devices for unusual or malformed POST requests, particularly those directed at administrative CGI or form endpoints. Monitor network traffic for connections from untrusted IP addresses attempting to communicate with the device's web interface. An increase in outbound traffic from the device could also indicate a successful compromise.

Compensating Controls: If immediate patching is not feasible, restrict access to the device's web management interface to a trusted management network or specific IP addresses using firewall rules. If the web interface must be exposed, consider placing it behind a Web Application Firewall (WAF) with rules designed to block overly long request parameters. Disabling remote/WAN management is a critical mitigating control.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 10, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity (CVSS 8.8) and the relative simplicity of exploiting buffer overflow vulnerabilities, it is highly probable that a functional exploit will be developed by security researchers or malicious actors in the near future. This vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation
Given the high severity of this vulnerability and the potential for complete system compromise, we strongly recommend that organizations prioritize patching all affected Tenda O3V2 devices immediately. The risk of unauthenticated remote code execution presents a critical threat to network security. While there is no known active exploitation at this time, the situation can change rapidly. Proactive patching is the most effective defense, and compensating controls should be implemented without delay where patching is not immediately possible.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-7417, has been discovered in multiple products from the vendor "has". This flaw could allow a remote, unauthenticated attacker to execute arbitrary code on affected devices, potentially leading to a complete system compromise. Organizations using the impacted products are at significant risk of data breaches, network intrusion, and service disruption until security updates are applied.

Vulnerability Details

CVE-ID: CVE-2025-7417

Affected Software: has Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The vulnerability is a stack-based buffer overflow within the web management interface of the affected devices. An unauthenticated, remote attacker can exploit this by sending a specially crafted HTTP POST request with an overly long value to a specific configuration parameter. Successful exploitation overwrites the stack, allowing the attacker to execute arbitrary code with the privileges of the web server process, which is often root on these types of embedded devices.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation could have a severe impact on business operations. A successful attacker could gain complete control of the network device, allowing them to intercept or redirect network traffic, exfiltrate sensitive data, use the device as a pivot point to attack other systems on the internal network, or enlist the device into a botnet for use in DDoS attacks. The potential consequences include significant operational downtime, regulatory fines from a data breach, and lasting reputational damage.

Remediation Plan

Immediate Action: The primary remediation is to apply the vendor-supplied security updates to all affected devices immediately. Before and after patching, system administrators should review device access logs and web server logs for any signs of compromise or anomalous activity consistent with exploitation attempts.

Proactive Monitoring: Monitor network traffic to and from the management interfaces of affected devices. Specifically, look for unusually long or malformed HTTP requests in web access logs. Network-level intrusion detection systems (IDS) should be configured with rules to detect and alert on potential buffer overflow attack signatures. Also, monitor for any unexpected outbound connections originating from the devices, which could indicate a successful compromise.

Compensating Controls: If patching cannot be performed immediately, implement strict access control lists (ACLs) on a firewall or upstream network device to restrict access to the device's management interface. Access should be limited to only trusted IP addresses on a dedicated management network. If enabled, disable remote (WAN-side) administration immediately.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 10, 2025, there are no known public proof-of-concept exploits or observed in-the-wild attacks targeting this vulnerability. However, due to the high severity (CVSS 8.8) and the relative simplicity of buffer overflow attacks, it is highly probable that security researchers and threat actors will develop a functional exploit in the near future by reverse-engineering the vendor's patch.

Analyst Recommendation
Given the high severity of this vulnerability, immediate action is required. Organizations must prioritize the identification and patching of all affected "has" products within their environment. Although CVE-2025-7417 is not currently listed on the CISA KEV list, its high-impact nature makes it a prime candidate for inclusion should widespread exploitation occur. If immediate patching is not feasible, the compensating controls outlined above, particularly restricting management interface access, must be implemented as a critical temporary measure to mitigate risk.

Executive Summary:
A high-severity vulnerability has been identified in multiple products from Vendor A, designated as CVE-2025-7416. This flaw could allow a remote attacker with basic user credentials to execute arbitrary code on affected systems, potentially leading to a complete system compromise. Organizations are urged to take immediate action to prevent potential data breaches, service disruptions, and unauthorized network access.

Vulnerability Details

CVE-ID: CVE-2025-7416

Affected Software: A Multiple Products

Affected Versions: See vendor advisory for specific affected versions.

Vulnerability: This vulnerability is a post-authentication remote code execution (RCE) flaw. A buffer overflow condition exists within a specific API function responsible for processing user-supplied data. An authenticated attacker can exploit this by sending a specially crafted request to the vulnerable API endpoint, overflowing the buffer and overwriting adjacent memory to execute arbitrary code with the privileges of the application service account. Exploitation is straightforward for an attacker who has already obtained valid, low-privileged user credentials.

Business Impact

This vulnerability presents a significant risk to the organization, reflected by its High severity rating with a CVSS score of 8.8. Successful exploitation could grant an attacker complete control over the affected systems, leading to severe consequences. These include the theft of sensitive corporate or customer data, deployment of ransomware, disruption of critical business operations, and the use of the compromised system as a pivot point for further attacks within the internal network. The potential for reputational damage and financial loss is substantial.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by Vendor A across all affected assets without delay. Utilize your organization's patch management system to deploy the updates efficiently. After patching, verify that the updates have been successfully installed and that the systems are functioning correctly.

Proactive Monitoring: Enhance monitoring of affected systems by configuring security information and event management (SIEM) tools to alert on suspicious activity. Specifically, monitor for abnormal patterns in API requests, unexpected processes being spawned by the application service, and unusual outbound network traffic that could indicate data exfiltration or command-and-control communication. Reviewing access logs for unusual authentication patterns or activity from unexpected geographic locations is also recommended.

Compensating Controls: If immediate patching is not feasible due to operational constraints, implement compensating controls to reduce the risk. These include restricting network access to the vulnerable application interfaces, placing the systems behind a Web Application Firewall (WAF) with rules designed to block exploit attempts (virtual patching), and enforcing multi-factor authentication (MFA) to make it more difficult for attackers to obtain the initial credentials required for exploitation.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of the publication date, July 10, 2025, there is no known public proof-of-concept exploit code, and no active exploitation has been observed in the wild. However, given the high severity of this vulnerability, it is highly probable that security researchers and threat actors will begin analyzing the patch to develop exploit code. The situation should be monitored closely for any change in threat intelligence.

Analyst Recommendation

Given the high CVSS score of 8.8 and the risk of complete system compromise, this vulnerability requires immediate attention. We strongly recommend that organizations prioritize the deployment of the vendor-provided security patches as the primary course of action. Although this CVE is not currently on the CISA KEV list, this is expected for a newly disclosed vulnerability. Its high impact makes it a prime candidate for future inclusion if widespread exploitation occurs. Organizations must act now to mitigate this critical risk before it is actively exploited by threat actors.

Executive Summary:
A critical vulnerability has been identified in multiple Tenda networking products, including the Tenda AX3 router. This flaw, a stack-based buffer overflow, can be exploited by a remote attacker to execute arbitrary code, effectively granting them complete control over the affected device. Successful exploitation could lead to network traffic interception, data theft, or the compromise of other devices on the internal network.

Vulnerability Details

CVE-ID: CVE-2025-69764

Affected Software: Tenda Multiple Products

Affected Versions: Tenda AX3 firmware v16.03.12.11 is confirmed to be vulnerable. See vendor advisory for a complete list of all affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the formGetIptv function of the device's firmware. The function fails to properly validate the size of user-supplied input before copying it into a fixed-size stack buffer named stbpvid. An unauthenticated remote attacker can exploit this by sending a specially crafted request containing an overly long value for the associated parameter, causing the buffer to overflow. This overflow can overwrite critical data on the stack, including the function's return address, allowing the attacker to redirect the program's execution flow to malicious shellcode and achieve remote code execution with the privileges of the device's web server process.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. A successful exploit would result in a complete compromise of the network device, which often serves as the gateway to the internet and the primary firewall for a network segment. The business impact includes a high risk of data breaches through traffic interception (e.g., capturing credentials and sensitive information), loss of network availability, and the potential for attackers to use the compromised device as a pivot point to attack other internal systems. Furthermore, the compromised router could be conscripted into a botnet for use in larger-scale attacks against other organizations, causing significant reputational damage.

Remediation Plan

Immediate Action: Immediately apply the latest firmware updates provided by Tenda to all affected devices. After patching, it is crucial to monitor for any signs of post-remediation exploitation attempts and review device access logs for any anomalous activity that occurred prior to the update.

Proactive Monitoring: Implement network monitoring to detect suspicious traffic patterns originating from or directed to the Tenda devices. System and web server logs on the devices should be reviewed for unusually long or malformed requests, particularly those targeting IPTV-related functionalities. Configure Intrusion Detection Systems (IDS) or Intrusion Prevention Systems (IPS) with signatures to detect and block common buffer overflow attack patterns.

Compensating Controls: If patching cannot be performed immediately, implement the following controls to reduce risk:

• Ensure the device's administrative web interface is not exposed to the public internet (WAN).
• Restrict access to the administrative interface to trusted IP addresses or a dedicated management VLAN.
• Implement network segmentation to limit the potential impact of a compromised router on critical internal assets.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of the publication date of January 22, 2026, there is no known public proof-of-concept exploit code, and there are no reports of this vulnerability being actively exploited in the wild. However, due to the critical severity and the nature of the flaw, it is highly likely that security researchers and threat actors will develop exploit code in the near future.

Analyst Recommendation

Given the critical CVSS score of 9.8, this vulnerability represents a severe risk to the security of the network perimeter. Although it is not currently listed on the CISA KEV catalog and is not under active exploitation, the potential for complete device takeover warrants immediate action. We strongly recommend that all organizations using affected Tenda products prioritize the deployment of the vendor-supplied firmware updates to mitigate the risk of compromise.

Executive Summary:
A critical SQL injection vulnerability has been identified in the ChurchCRM open-source church management system. This flaw allows an authenticated attacker to take complete control of the database, leading to the theft of sensitive member data, financial information, and administrative credentials, which could result in a full system compromise. Organizations using affected versions are at high risk of a significant data breach and should apply the available patch immediately.

Vulnerability Details

CVE-ID: CVE-2025-68112

Affected Software: ChurchCRM is an Multiple Products

Affected Versions: All versions prior to 6.5.3

Vulnerability: The vulnerability is a SQL injection flaw located in the Event Attendee Editor component of the ChurchCRM application. An attacker with valid user credentials can submit specially crafted SQL queries through this editor. Because the application fails to properly sanitize user-supplied input, these malicious queries are executed directly by the backend database, allowing the attacker to read, modify, or delete any data, including sensitive member PII, financial records, and user authentication credentials.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.6. Successful exploitation could lead to severe business consequences, including a major data breach of highly sensitive personal and financial information of church members, resulting in significant reputational damage and potential legal liabilities. The theft of administrative credentials could allow an attacker to gain full control over the church management system, disrupt operations, and use the compromised server for further malicious activities.

Remediation Plan

Immediate Action: Immediately upgrade all instances of ChurchCRM to version 6.5.3 or later, which contains the patch for this vulnerability. After patching, review application and database access logs for any signs of suspicious activity or unauthorized data access that may have occurred prior to the update.

Proactive Monitoring: Monitor database logs for unusual or malformed SQL queries, particularly those targeting the tables related to event attendance and user accounts. Review web server access logs for anomalous requests to the Event Attendee Editor endpoint. Implement alerts for multiple failed login attempts or access from unusual geographic locations, which could indicate a compromised account being used to exploit this flaw.

Compensating Controls: If immediate patching is not feasible, implement a Web Application Firewall (WAF) with strict SQL injection detection rules to block malicious requests. Additionally, restrict access to the Event Attendee Editor function to a minimal number of trusted administrative users and enforce multi-factor authentication (MFA) on all accounts to mitigate the risk of a compromised account being used for exploitation.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of the publication date of December 17, 2025, there is no known public proof-of-concept exploit code or active exploitation of this vulnerability in the wild. However, SQL injection vulnerabilities are well-understood, and attackers can develop exploits quickly. The requirement for authentication means an attacker must first compromise a user account, but the severity of the post-authentication impact remains critical.

Analyst Recommendation

Given the critical CVSS score of 9.6 and the risk of complete database and system compromise, it is imperative that organizations using the affected ChurchCRM software apply the security update to version 6.5.3 or later without delay. This vulnerability represents a direct and severe threat to the confidentiality and integrity of sensitive organizational and member data. All instances should be considered compromised until patched and thoroughly investigated for signs of malicious activity.

Executive Summary:
A critical buffer overflow vulnerability has been identified in multiple Tenda networking products. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted web request, which could cause the device to crash or potentially allow the attacker to take complete control. This presents a severe risk of network disruption, data interception, and further intrusions into the connected network.

Vulnerability Details

CVE-ID: CVE-2025-67073

Affected Software: Tenda Multiple Products (httpd service)

Affected Versions: Tenda AC10V4.0 V16.03.10.20 is confirmed to be affected. See vendor advisory for a complete list of specific affected products and versions.

Vulnerability: This is a buffer overflow vulnerability located in the fromAdvSetMacMtuWan function within the device's httpd web server binary. An unauthenticated remote attacker can trigger this vulnerability by sending a specifically crafted POST request to the /goform/AdvSetMacMtuWan endpoint. The function does not properly validate the length of the user-supplied input for the serviceName field. By providing an overly long string in this field, an attacker can overwrite adjacent memory on the stack, leading to a crash (Denial of Service) or, with a carefully constructed payload, arbitrary code execution with the privileges of the web server process.

Business Impact

This vulnerability is rated as critical with a CVSS score of 9.8, reflecting the high potential for significant damage. Successful exploitation could grant an attacker complete control over the affected network device. This could lead to severe business consequences, including the interception of sensitive network traffic, redirection of users to malicious websites, modification of network configurations, and using the compromised device as a pivot point to attack other systems on the internal network. The most immediate impact is the potential for a Denial of Service, which would disrupt all internet and network connectivity for users relying on the device.

Remediation Plan

Immediate Action: Update the firmware on all affected Tenda devices to the latest version provided by the vendor. After applying the update, monitor for any further exploitation attempts and review web access logs for indicators of compromise preceding the patch.

Proactive Monitoring:

• Network Traffic: Monitor for an unusual volume of POST requests to the /goform/AdvSetMacMtuWan URI.
• Log Analysis: Review web server logs for requests to this endpoint, specifically looking for entries with abnormally long values for the serviceName parameter or requests that resulted in server errors or crashes.
• System Behavior: Monitor affected devices for unexpected reboots, instability, or crashes of the httpd service.

Compensating Controls:

• Restrict access to the device's web administration interface from the WAN (internet). This is a critical security best practice that mitigates this and many other remote vulnerabilities.
• If available, deploy an Intrusion Prevention System (IPS) or Web Application Firewall (WAF) with rules to detect and block requests containing an anomalously long serviceName parameter sent to the vulnerable endpoint.
• Ensure the device is on a segmented network to limit the potential impact should a compromise occur.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of December 17, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, given the nature of buffer overflow vulnerabilities in widely deployed consumer networking equipment, it is highly likely that a functional proof-of-concept exploit will be developed and made public in the near future.

Analyst Recommendation

This vulnerability represents a critical risk to the organization due to its high severity and potential for remote code execution. Immediate patching of all affected Tenda devices should be considered the highest priority. While this vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its critical CVSS score warrants urgent attention. Organizations should apply the vendor-supplied firmware updates without delay and implement the recommended monitoring and compensating controls to mitigate risk.

Executive Summary:
A critical buffer overflow vulnerability has been identified in multiple Tenda products, assigned CVE-2025-55613 with a CVSS score of 9.8. This flaw allows an unauthenticated remote attacker to execute arbitrary code and gain complete control of an affected device by sending a specially crafted request to the MAC filtering function. Successful exploitation could lead to a full network compromise, data theft, or the device being co-opted into a botnet.

Vulnerability Details

CVE-ID: CVE-2025-55613

Affected Software: Tenda Multiple Products

Affected Versions: Tenda O3V2 version 1.0.0.12(3880) is confirmed to be vulnerable. See vendor advisory for a complete list of all affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the fromSafeSetMacFilter function of the device's firmware. An attacker can exploit this by sending a network request containing an overly long string in the mac parameter to the device's web management interface. The function fails to properly validate the length of this input, causing it to write past the intended buffer on the stack, which can overwrite critical data such as the function's return address. By carefully crafting the malicious input, an attacker can redirect the program's execution flow to arbitrary code, resulting in a full system compromise with the privileges of the running process, which is typically root.

Business Impact

This vulnerability presents a critical risk to the organization, reflected by its CVSS score of 9.8. A successful exploit grants an attacker complete control over the affected network device. This can lead to severe consequences, including the interception and theft of sensitive data passing through the network, unauthorized access to internal network segments, and the ability to launch further attacks against other systems from a trusted position within the network. Furthermore, compromised devices could be incorporated into a botnet for use in Distributed Denial-of-Service (DDoS) attacks, causing reputational damage and potential service disruption.

Remediation Plan

Immediate Action: Identify all vulnerable Tenda devices within the network and immediately apply the latest firmware updates provided by the vendor to patch this vulnerability. After patching, review device access logs for any anomalous requests or signs of compromise that may have occurred prior to the update.

Proactive Monitoring: Configure network monitoring and intrusion detection systems (IDS) to alert on unusually long or malformed requests targeting the management interfaces of Tenda devices. Specifically, monitor HTTP POST requests to the endpoint responsible for MAC filter settings for abnormally large values in the mac parameter. Review system and web server logs on the devices for repeated failed requests or error messages related to the fromSafeSetMacFilter function.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Restrict access to the device's web management interface to a dedicated, trusted administrative network or specific IP addresses.
• Ensure the management interface is not exposed to the public internet.
• If available, deploy a Web Application Firewall (WAF) in front of the device to inspect and block malicious requests containing overly long parameter values.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of August 22, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the critical CVSS score and the straightforward nature of buffer overflow vulnerabilities in embedded devices, it is highly probable that threat actors will develop exploits. The vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Given the critical severity (CVSS 9.8) of this vulnerability, which allows for remote code execution, it is imperative that the organization takes immediate action. We strongly recommend prioritizing the deployment of vendor-supplied patches to all affected Tenda devices. Although there is no evidence of active exploitation at this time, the high potential for complete system compromise makes this vulnerability an attractive target for attackers. Proactive patching is the most effective defense to prevent a security breach.

Executive Summary:
A critical vulnerability has been identified in multiple Tenda networking products, allowing a remote attacker to take complete control of affected devices. By sending a specially crafted web request, an attacker can trigger a buffer overflow and execute arbitrary code, posing a severe risk to network security, data confidentiality, and service availability. Due to the public availability of an exploit, this vulnerability is highly likely to be targeted by malicious actors.

Vulnerability Details

CVE-ID: CVE-2025-15255

Affected Software: A vulnerability was determined in Tenda Multiple Products

Affected Versions: Tenda W6-S version 1.0.0.4(510) is confirmed to be affected. See vendor advisory for a complete list of other affected products and versions.

Vulnerability: This is a stack-based buffer overflow vulnerability in the /bin/httpd web server process running on affected Tenda devices. Specifically, the flaw exists within a function of the R7websSsecurityHandler component, which improperly handles the Cookie header of incoming HTTP requests. A remote, unauthenticated attacker can send a request with an overly long or malformed Cookie value, overflowing the buffer on the stack and overwriting critical program data, which can lead to arbitrary code execution with the privileges of the web server process (typically root).

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8, indicating a high potential for significant business disruption. Successful exploitation could lead to the complete compromise of affected network devices. An attacker could intercept sensitive data passing through the network, pivot to attack other internal systems, disrupt network availability, or incorporate the compromised device into a botnet for use in larger attacks like Distributed Denial of Service (DDoS). This presents a direct threat to data confidentiality, network integrity, and the overall security posture of the organization.

Remediation Plan

Immediate Action: Update A vulnerability was determined in Tenda Multiple Products to the latest version. The primary remediation is to immediately identify all affected Tenda devices within the environment and apply the latest firmware updates provided by the vendor. After patching, monitor for any signs of exploitation attempts by reviewing device and network access logs.

Proactive Monitoring: Security teams should actively monitor for signs of compromise or exploitation attempts. This includes reviewing web server logs on the devices for unusually long or malformed Cookie headers, monitoring for unexpected device reboots or configuration changes, and scrutinizing network traffic for anomalous outbound connections from the devices to unknown external IP addresses.

Compensating Controls: If patching cannot be performed immediately, organizations should implement compensating controls. Restrict access to the device's web management interface from the internet or any untrusted network. If possible, place the device behind a Web Application Firewall (WAF) or Intrusion Prevention System (IPS) with signatures designed to detect and block buffer overflow attacks in HTTP headers.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date of Dec 30, 2025, an exploit for this vulnerability has been publicly disclosed. The availability of a public exploit significantly increases the likelihood of widespread, opportunistic attacks by a broad range of threat actors. Although not currently listed on the CISA KEV catalog, its critical nature and public exploit code make it a prime target for exploitation.

Analyst Recommendation

This vulnerability represents a critical and immediate threat to the organization. Given the 9.8 CVSS score, the remote and unauthenticated nature of the attack, and the public availability of exploit code, this issue must be addressed with the highest priority. We strongly recommend that all affected Tenda devices be identified and patched immediately. If patching is not feasible, the devices should be isolated from the internet and untrusted networks until they can be updated or replaced.

Executive Summary:
A critical remote code execution vulnerability, identified as CVE-2025-15047, has been discovered in multiple Tenda products. This flaw allows an unauthenticated attacker to take complete control of an affected device over the network by sending a specially crafted request, posing a severe risk of data compromise, network disruption, and further intrusions into the connected network.

Vulnerability Details

CVE-ID: CVE-2025-15047

Affected Software: A vulnerability was found in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. As the advisory mentions "Multiple Products," other products and versions may also be vulnerable. See vendor advisory for specific affected versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the HTTP Request Handler component of the device's firmware. A remote, unauthenticated attacker can exploit this by sending a crafted HTTP POST request to the /goform/PPTPDClient endpoint with an overly long value in the Username parameter. This action overflows the buffer on the stack, allowing the attacker to overwrite critical control structures and execute arbitrary code with the privileges of the device's web server, typically root.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8, reflecting the ease of exploitation and the potential for complete system compromise. Successful exploitation would grant an attacker full administrative control over the affected Tenda device. This could lead to severe consequences, including the theft of sensitive network traffic, installation of persistent malware, pivoting to attack other internal network assets, and using the compromised device as part of a botnet for DDoS attacks. The direct risks to the organization include loss of data confidentiality, integrity, and availability of network services.

Remediation Plan

Immediate Action: The primary remediation is to update the firmware on all affected Tenda devices. Organizations must immediately identify vulnerable devices and apply the patches provided by the vendor. The vendor's official recommendation is to: Update A vulnerability was found in Tenda Multiple Products to the latest version.

Proactive Monitoring: Security teams should actively monitor for signs of compromise. This includes reviewing web server access logs for anomalous requests to the /goform/PPTPDClient endpoint, specifically looking for POST requests with abnormally long Username parameters. Monitor network traffic for unusual outbound connections from Tenda devices and watch for unexpected system behavior such as high CPU utilization or reboots.

Compensating Controls: If patching cannot be performed immediately, implement the following controls to reduce risk:

• Restrict access to the device's web management interface to trusted internal networks only. Do not expose the management interface to the internet.
• Implement network segmentation to isolate the Tenda devices from critical network assets, limiting the potential impact of a compromise.
• If a Web Application Firewall (WAF) is in place, create a rule to block or alert on requests to /goform/PPTPDClient that contain a Username field exceeding a reasonable length.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date of Dec 23, 2025, a proof-of-concept exploit for this vulnerability has been made public. Vulnerabilities in widely used SOHO networking equipment are attractive targets for automated scanning and botnet operators. The public availability of an exploit significantly increases the likelihood of widespread, indiscriminate attacks against unpatched devices.

Analyst Recommendation

Given the critical CVSS score of 9.8, the remote and unauthenticated nature of the exploit, and the public availability of exploit code, this vulnerability poses an immediate and severe threat. Organizations are strongly urged to prioritize the patching of all affected Tenda devices without delay. Although this CVE is not currently listed on the CISA KEV catalog, its characteristics make it a prime candidate for active exploitation. All remediation and monitoring actions should be treated with the highest urgency to prevent a potential compromise.

Executive Summary:
A critical remote code execution vulnerability has been identified in multiple Tenda networking products. The flaw allows a remote, unauthenticated attacker to take full control of an affected device by sending a specially crafted request, posing a severe risk to network security, data confidentiality, and availability. Since an exploit has been made public, the likelihood of attack is high.

Vulnerability Details

CVE-ID: CVE-2025-15046

Affected Software: A vulnerability has been found in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This is a stack-based buffer overflow vulnerability within the HTTP Request Handler component of the device's firmware. An unauthenticated attacker can send a malicious HTTP POST request to the /goform/PPTPClient endpoint. By providing an overly long string in the netmsk parameter of this request, the attacker can overwrite the program's stack, leading to arbitrary code execution with the privileges of the device's web server, which is typically root.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation would result in a complete compromise of the affected Tenda device. An attacker could gain full administrative control, allowing them to intercept or redirect all network traffic, install persistent backdoors, launch attacks against other devices on the internal network, or incorporate the device into a botnet for use in larger-scale attacks like DDoS. This poses a significant risk to data confidentiality, operational integrity, and the security of the entire network connected to the device.

Remediation Plan

Immediate Action: Update affected Tenda products to the latest version. After applying the patch, it is crucial to monitor for any signs of prior exploitation and review system and access logs for any suspicious activity targeting the /goform/PPTPClient endpoint.

Proactive Monitoring: Security teams should monitor network traffic for HTTP requests to the /goform/PPTPClient URI, specifically inspecting for abnormally long values in the netmsk parameter. Monitor affected devices for unusual outbound connections, high CPU utilization, or unauthorized configuration changes, as these can be indicators of compromise.

Compensating Controls: If patching cannot be performed immediately, disable remote (WAN) access to the device's web administration interface. If remote administration is required, ensure it is only accessible through a secure VPN with multi-factor authentication. Consider implementing a Web Application Firewall (WAF) or intrusion prevention system (IPS) rules to block malicious requests targeting the vulnerable endpoint.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date of Dec 23, 2025, a functional exploit for this vulnerability has been publicly disclosed. This dramatically increases the risk of widespread, automated attacks by threat actors of all skill levels.

Analyst Recommendation

Given the critical severity (CVSS 9.8), remote exploitability, and the confirmed availability of a public exploit, this vulnerability represents an immediate and severe threat. All organizations using affected Tenda products must prioritize the application of vendor-supplied patches immediately. Due to the high likelihood of active exploitation, this vulnerability should be treated as an active threat, and remediation efforts should be expedited to prevent device compromise and subsequent network intrusion.

Executive Summary:
A critical remote code execution vulnerability has been identified in multiple Tenda products, tracked as CVE-2025-15045. This flaw allows an unauthenticated, remote attacker to take complete control of an affected device by sending a specially crafted web request, posing a severe risk of network compromise, data theft, and further internal attacks.

Vulnerability Details

CVE-ID: CVE-2025-15045

Affected Software: A flaw has been found in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of other affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the HTTP Request Handler component of the device's firmware. Specifically, an unknown function processing requests to the /goform/Natlimit endpoint fails to properly validate the length of the page argument. An unauthenticated remote attacker can send a crafted HTTP request with an overly long value for the page argument, triggering the buffer overflow and allowing for the execution of arbitrary code with the privileges of the web server process, which is likely root.

Business Impact

This vulnerability is rated as critical with a CVSS score of 9.8, reflecting the ease of exploitation and the potential for severe impact. A successful exploit grants an attacker complete control over the affected network device. This could lead to a full network compromise, interception of sensitive data traversing the network, deployment of malware, and using the compromised device as a pivot point to attack other internal systems. The device could also be co-opted into a botnet for use in larger-scale attacks like DDoS, posing a significant risk to business operations, data confidentiality, and organizational reputation.

Remediation Plan

Immediate Action: Update A flaw has been found in Tenda Multiple Products to the latest version. Monitor for exploitation attempts and review access logs. Prioritize patching for all internet-facing devices immediately.

Proactive Monitoring: Security teams should actively monitor for anomalous HTTP requests to the /goform/Natlimit endpoint, particularly those containing an unusually long page parameter. Monitor network traffic for unexpected outbound connections from Tenda devices, which could indicate a successful compromise and communication with a command-and-control server. Review web server logs on the devices for repeated requests or errors related to the vulnerable endpoint.

Compensating Controls: If immediate patching is not feasible, restrict access to the device's web management interface from the internet. If remote management is necessary, configure firewall rules to only allow access from trusted, whitelisted IP addresses. Implement network segmentation to isolate vulnerable devices from critical internal network segments to limit the potential blast radius of a compromise.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of Dec 23, 2025, a proof-of-concept exploit has been publicly released. This significantly lowers the bar for attackers and increases the likelihood of widespread, automated exploitation attempts against vulnerable Tenda devices. While this CVE is not currently on the CISA KEV list, its critical nature and the availability of a public exploit make it a prime candidate for future inclusion.

Analyst Recommendation

Immediate action is required. Due to the critical CVSS score of 9.8, remote exploitability without authentication, and the confirmed availability of a public exploit, this vulnerability poses a severe and imminent threat. Organizations must prioritize the identification and patching of all affected Tenda devices. Apply the vendor-provided firmware updates immediately to prevent a full network compromise.

Executive Summary:
A critical remote code execution vulnerability, identified as CVE-2025-15044, affects multiple Tenda products. This flaw allows a remote, unauthenticated attacker to gain complete control of a vulnerable device by sending a specially crafted request, posing a significant risk of network compromise, data theft, and further internal attacks. A public exploit for this vulnerability is available, increasing the likelihood of active attacks.

Vulnerability Details

CVE-ID: CVE-2025-15044

Affected Software: Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of all impacted products and versions.

Vulnerability: This vulnerability is a stack-based buffer overflow in the web management interface of affected Tenda devices. An unauthenticated attacker can send a malicious HTTP POST request to the /goform/NatStaticSetting endpoint. By supplying an overly long string in the page argument of this request, the attacker can overwrite the program's execution stack, leading to arbitrary code execution with the privileges of the web server process, which is typically root on these embedded devices.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation allows an attacker to gain complete administrative control over the affected network device. The potential consequences include interception of all network traffic, modification of network configuration to redirect users to malicious sites, launching attacks against other devices on the internal network, and incorporating the compromised device into a botnet for use in larger attacks like Distributed Denial of Service (DDoS). This poses a severe risk to data confidentiality, integrity, and the availability of network services.

Remediation Plan

Immediate Action: Immediately update affected Tenda products to the latest firmware version as recommended by the vendor. After patching, review device configurations and access logs for any signs of unauthorized access or modification that may have occurred prior to the update.

Proactive Monitoring: Monitor web server access logs for anomalous requests to the /goform/NatStaticSetting file, specifically looking for POST requests with unusually long values for the page parameter. Network traffic should be monitored for unexpected outbound connections from the router, which could indicate a successful compromise.

Compensating Controls: If patching is not immediately possible, disable remote/WAN access to the device's web management interface. If remote administration is a business requirement, restrict access using a firewall or Access Control Lists (ACLs) to only trusted IP addresses. Deploying an Intrusion Prevention System (IPS) with up-to-date signatures may also help detect and block exploitation attempts.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date, Dec 23, 2025, a functional public exploit is available. The availability of a public exploit significantly lowers the bar for attackers and increases the probability of widespread, automated attacks against vulnerable, internet-exposed devices.

Analyst Recommendation

Given the critical CVSS score of 9.8, the remote and unauthenticated nature of the exploit, and the confirmed availability of a public exploit, this vulnerability requires immediate attention. Organizations must prioritize applying the vendor-supplied firmware updates to all affected Tenda devices, starting with those that are internet-facing. Although not currently listed on the CISA KEV, its characteristics make it a prime candidate for future inclusion, and it should be treated with the highest urgency.

Executive Summary:
A critical remote code execution vulnerability, identified as CVE-2025-15010, has been discovered in multiple Tenda products. An unauthenticated attacker can exploit this flaw over the network to gain complete control of an affected device, potentially leading to network traffic interception, unauthorized access to the internal network, or use of the device in a botnet. Immediate patching is required due to the vulnerability's high severity and the public availability of exploit code.

Vulnerability Details

CVE-ID: CVE-2025-15010

Affected Software: A vulnerability has been found in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed vulnerable. Other Tenda products may also be affected; see vendor advisory for a complete list.

Vulnerability: This vulnerability is a stack-based buffer overflow within the web management interface of affected Tenda devices. A remote, unauthenticated attacker can send a specially crafted HTTP request to the /goform/SafeUrlFilter endpoint. By providing an overly long string in the page argument of this request, the attacker can overwrite the program's execution stack, leading to arbitrary code execution with the privileges of the web server process, which is typically root on these embedded devices.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation allows an attacker to take complete administrative control of the affected networking device. This could lead to severe business consequences, including the interception of sensitive network traffic, unauthorized access to internal network resources, deployment of malware, and the ability to use the compromised device as a pivot point for further attacks. The device could also be co-opted into a botnet for use in Distributed Denial-of-Service (DDoS) attacks, potentially causing reputational damage and service disruption.

Remediation Plan

Immediate Action: Update A vulnerability has been found in Tenda Multiple Products to the latest version. The primary remediation is to apply the firmware updates provided by the vendor immediately to all affected devices. After patching, monitor for any signs of exploitation attempts by reviewing access logs for anomalous activity.

Proactive Monitoring: Implement network and log monitoring to detect exploitation attempts. Specifically, monitor for inbound HTTP requests to the /goform/SafeUrlFilter URI. Alert on requests containing an unusually long value for the page parameter. Monitor for unexpected outbound connections from Tenda devices, which could indicate a successful compromise.

Compensating Controls: If patching cannot be performed immediately, restrict access to the device's web management interface from the internet. If remote management is necessary, place it behind a VPN or a Web Application Firewall (WAF) configured with rules to block malicious requests targeting the vulnerable endpoint. Network segmentation should be used to limit the "blast radius" should a device become compromised, preventing it from accessing critical internal systems.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date, Dec 22, 2025, a proof-of-concept exploit for this vulnerability has been publicly disclosed. This significantly lowers the bar for attackers and increases the likelihood of widespread, opportunistic exploitation. Organizations should assume that active scanning and exploitation attempts are imminent or already underway.

Analyst Recommendation

Given the critical CVSS score of 9.8, the potential for remote, unauthenticated code execution, and the availability of a public exploit, this vulnerability poses an immediate and severe threat. It is strongly recommended that organizations prioritize the deployment of vendor-supplied firmware updates to all affected Tenda devices without delay. If patching is not immediately feasible, implement the suggested compensating controls, particularly restricting all external access to the management interface. Although not currently listed on the CISA KEV catalog, its characteristics make it a prime candidate for future inclusion, and it should be treated with the highest urgency.

Executive Summary:
A critical remote code execution vulnerability, identified as CVE-2025-15007, exists in multiple Tenda products. The flaw allows a remote, unauthenticated attacker to take complete control of an affected device by sending a specially crafted web request, posing a severe risk to network security and data confidentiality.

Vulnerability Details

CVE-ID: CVE-2025-15007

Affected Software: Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of specific affected products and versions.

Vulnerability: A stack-based buffer overflow vulnerability exists in the HTTP Request Handler component of the device's firmware. An unauthenticated, remote attacker can exploit this by sending a crafted HTTP request to the /goform/L7Im endpoint with an overly long value in the page argument. This overflows the buffer on the stack, allowing the attacker to overwrite critical program data and achieve arbitrary code execution with the privileges of the web server process, typically root.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation allows an attacker to gain full administrative control over the affected network device. This could lead to severe consequences, including the interception of all network traffic, unauthorized access to the internal network, deployment of malware, or using the compromised device as part of a larger botnet for launching DDoS attacks. The risk to business operations, data confidentiality, and network integrity is exceptionally high.

Remediation Plan

Immediate Action: Immediately apply the latest firmware updates provided by Tenda to all affected devices. If updates are not yet available, restrict access to the device's management interface from the internet. After patching, monitor for any signs of compromise that may have occurred prior to remediation.

Proactive Monitoring: Security teams should actively monitor network logs for inbound HTTP requests targeting the /goform/L7Im endpoint. Specifically, look for requests with unusually long or malformed data in the page parameter. Monitor affected devices for unusual outbound traffic, unexpected reboots, or high CPU usage, which could indicate a successful compromise.

Compensating Controls: If patching is not immediately possible, implement the following controls:

• Use a Web Application Firewall (WAF) or Intrusion Prevention System (IPS) with rules to block malicious requests to the /goform/L7Im path.
• Restrict access to the device's web administration interface to a trusted internal management network only.
• Segment the network to isolate the Tenda device, limiting the potential impact of a compromise on other critical systems.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date, Dec 22, 2025, a functional exploit for this vulnerability has been publicly disclosed. This significantly increases the likelihood of active, widespread exploitation by various threat actors. Due to the simplicity of the attack, it is expected that automated scanning and exploitation attempts will begin immediately.

Analyst Recommendation

Given the critical severity (CVSS 9.8), remote exploitability, and the public availability of an exploit, this vulnerability represents an immediate and severe threat to the organization. All affected Tenda devices must be identified and patched on an emergency basis. Due to the high probability of active exploitation, this vulnerability should be treated with the highest priority, equivalent to a CISA KEV directive, to prevent a full network compromise.

Executive Summary:
A critical remote code execution vulnerability, identified as CVE-2025-15006, affects multiple Tenda products. The flaw allows an unauthenticated remote attacker to take complete control of a vulnerable device by sending a specially crafted request. Given that a public exploit is available, immediate action is required to prevent device compromise, which could lead to network breaches or the device being co-opted into a botnet.

Vulnerability Details

CVE-ID: CVE-2025-15006

Affected Software: A weakness has been identified in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed vulnerable. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This vulnerability is a stack-based buffer overflow within the HTTP Request Handler component of the device's firmware. Specifically, the /goform/CheckTools function does not properly validate the length of the ipaddress parameter in incoming HTTP requests. An unauthenticated remote attacker can exploit this by sending a request with an overly long string in the ipaddress parameter, overflowing the stack buffer, overwriting the return address, and achieving arbitrary code execution with the privileges of the web server process.

Business Impact

This vulnerability is rated critical with a CVSS score of 9.8. Successful exploitation would result in a complete compromise of the affected Tenda device, granting the attacker full administrative control. This could lead to severe consequences, including the interception of sensitive network traffic, unauthorized access to the internal network, using the device as a pivot point for further attacks, or incorporating it into a botnet for use in Distributed Denial-of-Service (DDoS) attacks. The risk to data confidentiality, integrity, and network availability is significant.

Remediation Plan

Immediate Action: Update A weakness has been identified in Tenda Multiple Products to the latest version. Prioritize patching for all internet-facing devices immediately. After patching, monitor for exploitation attempts and review access logs for any suspicious requests targeting the /goform/CheckTools endpoint.

Proactive Monitoring: Monitor web server and network logs for HTTP requests to the /goform/CheckTools endpoint containing an abnormally long ipaddress parameter. Implement Intrusion Detection System (IDS) rules to detect and alert on exploit signatures for CVE-2025-15006. Monitor for unusual outbound traffic from Tenda devices, which could indicate a successful compromise and command-and-control communication.

Compensating Controls: If immediate patching is not feasible, restrict access to the device's web management interface from the internet. If remote administration is required, ensure it is only accessible via a secure VPN connection. Implement network segmentation to isolate the devices and limit an attacker's ability to move laterally across the network if a device is compromised. A Web Application Firewall (WAF) may be configured to block malicious requests to the vulnerable endpoint.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of Dec 22, 2025, a proof-of-concept exploit for this vulnerability has been made publicly available. The existence of a public exploit significantly increases the likelihood of active attacks by a wide range of threat actors. Although this vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its critical severity and the availability of an exploit make it a high-priority target for remediation.

Analyst Recommendation
Given the critical severity (CVSS 9.8) and the public availability of an exploit, this vulnerability poses an immediate and severe threat to the organization. We strongly recommend that all affected Tenda products are updated to the latest firmware version without delay, prioritizing internet-facing systems. The lack of CISA KEV status should not reduce the urgency of this action. Organizations should assume active targeting and apply the recommended remediation and monitoring controls to prevent a full device and potential network compromise.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-14995, has been discovered in multiple products from the vendor "has". Successful exploitation could allow an unauthenticated remote attacker to take complete control of affected systems, potentially leading to data theft, service disruption, or further unauthorized access into the corporate network. Organizations are urged to apply vendor-provided security updates immediately to mitigate this significant risk.

Vulnerability Details

CVE-ID: CVE-2025-14995

Affected Software: has Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability is a critical command injection flaw within the web-based management interface of the affected products. An unauthenticated attacker with network access to the device can send a specially crafted HTTP request containing arbitrary commands to a specific API endpoint. The system fails to properly sanitize this input, executing the commands with root-level privileges, which results in a complete system compromise.

Business Impact

This vulnerability presents a significant threat to the business, categorized as High severity with a CVSS score of 8.8. Exploitation could lead to a complete compromise of the affected device's confidentiality, integrity, and availability. Potential consequences include the exfiltration of sensitive data, installation of malware or ransomware, disruption of network services, and the use of the compromised device as a pivot point to launch further attacks against the internal network. Such an incident could result in substantial financial loss, operational downtime, and reputational damage.

Remediation Plan

Immediate Action: The primary and most effective remediation is to apply the security updates provided by the vendor immediately. System administrators should consult the vendor's security advisory for CVE-2025-14995 to identify the correct patch for their specific product and version. After patching, verify that the update was successfully installed.

Proactive Monitoring: Organizations should actively monitor for signs of compromise. Review web server access logs on affected devices for unusual or malformed requests, especially those targeting the management interface from untrusted IP addresses. Monitor network traffic for unexpected outbound connections originating from the affected devices, which could indicate a successful compromise.

Compensating Controls: If immediate patching is not feasible, implement the following compensating controls to reduce the attack surface:

• Restrict access to the device's management interface using a firewall or network segmentation, allowing connections only from a trusted and isolated management network.
• Deploy an Intrusion Prevention System (IPS) with signatures capable of detecting and blocking command injection attempts.
• Disable the web management interface if it is not essential for business operations.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of December 22, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, due to the high severity and relative simplicity of exploiting command injection flaws, it is highly probable that a public exploit will be developed and released in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8, this vulnerability poses a critical risk and should be remediated with the highest priority. Although CVE-2025-14995 is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its severity makes it a prime candidate for future inclusion. We strongly recommend that all organizations identify affected assets and apply the vendor-supplied patches immediately. If patching cannot be performed right away, the compensating controls outlined above must be implemented as an urgent temporary measure.

Executive Summary:
A high-severity vulnerability has been discovered in Tenda FH1201 and FH1206 wireless routers, identified as CVE-2025-14994. This flaw allows a remote, unauthenticated attacker to execute arbitrary code and gain complete control over the affected devices. Successful exploitation could lead to network traffic interception, denial of service, or using the compromised device to launch further attacks against the internal network.

Vulnerability Details

CVE-ID: CVE-2025-14994

Affected Software: Tenda FH1201 and FH1206

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The vulnerability is a stack-based buffer overflow within the web management interface of the affected routers. An unauthenticated attacker can exploit this flaw by sending a specially crafted POST request containing an overly long string to a specific function in the device's web server. This action overwrites the stack, allowing the attacker to execute arbitrary code with root-level privileges on the underlying operating system.

Business Impact

This vulnerability presents a significant risk to the organization, categorized as a High severity with a CVSS score of 8.8. A successful exploit would grant an attacker complete administrative control over the network device. This could lead to severe consequences, including the interception of sensitive data traversing the network, deployment of malware, denial of service against critical network infrastructure, and using the compromised router as a pivot point to attack other internal assets. The potential business impact includes data breaches, operational disruption, and reputational damage.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately. All vulnerable Tenda FH1201 and FH1206 devices must be identified and patched. After patching, administrators should review device access logs for any signs of compromise or unusual activity preceding the update.

Proactive Monitoring: Monitor network traffic for anomalous POST requests directed at the routers' web management interface. System administrators should also monitor for any unexpected outbound connections originating from the routers themselves. Reviewing web server logs on the devices for malformed requests or error messages can help detect attempted or successful exploitation.

Compensating Controls: If immediate patching is not feasible, access to the device's web management interface should be strictly limited. Ensure the management interface is not exposed to the internet and is only accessible from a secure, isolated management network segment. Implement firewall rules to block all untrusted access to the device's administrative ports (e.g., TCP 80, 443).

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of December 21, 2025, proof-of-concept (PoC) exploit code has been publicly released. While there are no confirmed reports of widespread exploitation in the wild at this time, the availability of a public PoC significantly increases the likelihood of attacks by a broad range of threat actors.

Analyst Recommendation

Given the high CVSS score of 8.8, the remote and unauthenticated nature of the exploit, and the public availability of PoC code, this vulnerability requires immediate attention. Although not currently listed on the CISA KEV catalog, its characteristics make it a prime candidate for future inclusion. We strongly recommend that organizations prioritize the immediate patching of all affected Tenda devices. If patching cannot be performed immediately, the compensating controls outlined above, particularly restricting all external access to the management interface, must be implemented as a critical interim measure.

Executive Summary:
A high-severity vulnerability, identified as CVE-2025-14993 with a CVSS score of 8.8, has been discovered in Tenda networking products, specifically the Tenda AC18 router. Exploitation of this flaw could allow a remote, unauthenticated attacker to execute arbitrary code and gain complete control of an affected device. This could lead to a full network compromise, data theft, and service disruption, posing a significant risk to the organization.

Vulnerability Details

CVE-ID: CVE-2025-14993

Affected Software: Tenda AC18

Affected Versions: Tenda AC18 firmware version 15.x. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This vulnerability is a stack-based buffer overflow in the web management interface of the Tenda AC18 router. An unauthenticated, remote attacker can exploit this flaw by sending a specially crafted HTTP request containing an overly long string to a specific parameter handled by the device's web server. This action overwrites the program's execution stack, allowing the attacker to redirect the flow of execution and run arbitrary code with the privileges of the root user on the device.

Business Impact

This is a high-severity vulnerability with a CVSS score of 8.8, indicating a critical risk to the business. A successful exploit would grant an attacker full administrative control over the compromised network device. This could lead to severe consequences, including the interception and theft of sensitive data passing through the network, man-in-the-middle attacks to redirect traffic, and using the device as a pivot point to launch further attacks against the internal network. Additionally, the compromised router could be co-opted into a botnet for use in larger-scale attacks, leading to reputational damage and potential service disruptions.

Remediation Plan

Immediate Action: Immediately apply the security updates released by the vendor (Tenda) to all affected devices. Prioritize patching for devices with management interfaces exposed to the internet. Concurrently, begin monitoring for signs of exploitation and review system and access logs for any anomalous activity related to the web management interface.

Proactive Monitoring: Monitor firewall and router logs for unusual or malformed HTTP requests directed at the device's management interface. Network security teams should watch for unexpected outbound connections from routers to unknown IP addresses, which could indicate a command-and-control (C2) channel. Configure network monitoring tools to alert on signatures associated with this CVE as they become available.

Compensating Controls: If patching is not immediately possible, disable remote/WAN access to the device's management interface to limit exposure. Access should be restricted to a trusted, internal management network. Implement network segmentation to isolate the router from critical internal assets, thereby limiting the potential impact of a compromise.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of December 21, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, given the high CVSS score and the critical impact of a successful exploit (remote code execution), it is highly probable that proof-of-concept code will be developed and released by security researchers or threat actors in the near future. The vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

This vulnerability represents a significant and immediate risk to the organization's network security. Due to the high severity (CVSS 8.8) and the potential for complete device compromise by an unauthenticated attacker, immediate action is required. We strongly recommend that all affected Tenda devices be patched immediately, following the vendor's guidance. Although this vulnerability is not yet known to be actively exploited in the wild, its severity makes it a prime target for future attacks. Proactive remediation is critical to prevent a potential network breach.

Executive Summary:
A high-severity vulnerability has been identified in multiple Tenda products, including the Tenda AC18 router. This flaw could allow a remote, unauthenticated attacker to take complete control of affected devices, potentially leading to network breaches, data theft, or disruption of services. Organizations are urged to apply vendor-provided security updates immediately to mitigate this critical risk.

Vulnerability Details

CVE-ID: CVE-2025-14992

Affected Software: Tenda Multiple Products (including Tenda AC18)

Affected Versions: Tenda AC18 firmware version 15. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This vulnerability is a stack-based buffer overflow in the web management interface of affected Tenda devices. An unauthenticated attacker on the same network can exploit this flaw by sending a specially crafted HTTP POST request with an overly long parameter to a specific configuration endpoint. Successful exploitation overflows the buffer, allowing the attacker to overwrite the return address on the stack and achieve arbitrary code execution with root privileges on the device.

Business Impact

This vulnerability presents a significant risk to the organization, reflected by its High severity rating with a CVSS score of 8.8. Successful exploitation could lead to a complete compromise of the network perimeter security. An attacker could intercept sensitive network traffic, pivot to attack other internal systems, install persistent backdoors, or use the compromised device as part of a botnet for launching denial-of-service attacks. The potential consequences include loss of data confidentiality and integrity, disruption of business operations, reputational damage, and regulatory penalties.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately. System administrators should identify all affected devices within the environment and schedule a maintenance window to deploy the patched firmware. Following the update, review device access logs for any signs of compromise that may have occurred prior to patching.

Proactive Monitoring: Implement enhanced monitoring of network traffic to and from affected devices. Look for unusual or unauthorized outbound connections, spikes in traffic volume, and anomalous requests in web server logs targeting the device's management interface. Network Intrusion Detection/Prevention Systems (NIDS/NIPS) should be updated with signatures that can detect exploitation attempts related to this CVE.

Compensating Controls: If immediate patching is not feasible, implement the following compensating controls to reduce the risk of exploitation:

• Restrict access to the device's web management interface to a dedicated and trusted management network.
• Disable remote (WAN-side) administration capabilities entirely.
• Implement network segmentation to isolate the device and limit an attacker's ability to move laterally if the device is compromised.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of December 21, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity score and the nature of the flaw, it is highly probable that security researchers and threat actors will develop exploit code in the near future. The vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog.

Analyst Recommendation

Due to the critical nature of this vulnerability (CVSS 8.8), we strongly recommend that organizations prioritize the immediate patching of all affected Tenda devices. The potential for a complete network compromise by an unauthenticated attacker represents an unacceptable risk. If patching cannot be performed immediately, the compensating controls outlined above, particularly restricting access to the management interface, must be implemented as an urgent temporary measure. Although not yet known to be exploited in the wild, vulnerabilities of this severity are prime targets for attackers and should be remediated with the highest priority.

Executive Summary:
A critical vulnerability has been identified in multiple Tenda products, allowing a remote, unauthenticated attacker to take complete control of an affected device. This flaw is a stack-based buffer overflow that can be triggered by a specially crafted web request, leading to arbitrary code execution. Due to its critical severity (CVSS 9.8) and the public availability of an exploit, this vulnerability poses a significant and immediate threat to network security.

Vulnerability Details

CVE-ID: CVE-2025-14879

Affected Software: A weakness has been identified in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of affected products and versions.

Vulnerability: This vulnerability is a stack-based buffer overflow within the HTTP Request Handler component of the device's firmware. Specifically, an unknown function processing requests to the /goform/onSSIDChange endpoint fails to properly validate the length of the ssid_index argument. A remote, unauthenticated attacker can send a crafted HTTP POST request with an overly long value for the ssid_index parameter, causing a buffer overflow on the stack, which can be leveraged to execute arbitrary code with the privileges of the web server process (typically root).

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation could lead to a complete compromise of the affected network device. An attacker could intercept sensitive network traffic, pivot to attack other systems on the internal network, use the device as part of a botnet for DDoS attacks, or completely disrupt network connectivity. The business risks include data breaches, significant operational downtime, reputational damage, and the potential for the compromised device to be used as a foothold for a larger network intrusion.

Remediation Plan

Immediate Action: Update all affected Tenda Multiple Products to the latest firmware version released by the vendor to patch this vulnerability. After patching, monitor for any signs of post-exploitation activity and review access logs for requests matching the attack pattern.

Proactive Monitoring: Security teams should monitor web server access logs on Tenda devices for anomalous POST requests to the /goform/onSSIDChange URI, particularly those with an unusually long ssid_index parameter. Monitor outbound network traffic from these devices for connections to unknown or malicious IP addresses. An Intrusion Detection System (IDS) or Web Application Firewall (WAF) can be configured with rules to detect and block exploit attempts.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce risk:

• Disable WAN (internet-facing) access to the device's web administration interface.
• If remote administration is required, restrict access to trusted IP addresses only using firewall rules.
• Deploy a Web Application Firewall (WAF) to inspect and block malicious requests targeting the vulnerable endpoint.
• Ensure the device is on a segmented network to limit an attacker's ability to pivot to more critical systems if the device is compromised.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of the publication date of Dec 18, 2025, a functional exploit for this vulnerability has been released to the public. This dramatically increases the likelihood of widespread, opportunistic exploitation by attackers of all skill levels. While not currently listed on the CISA KEV catalog, its critical nature and the availability of a public exploit make it a strong candidate for future inclusion.

Analyst Recommendation
Given the critical severity (CVSS 9.8), remote exploitability without authentication, and the confirmed public availability of an exploit, this vulnerability requires immediate attention. We strongly recommend that all affected Tenda devices be patched on an emergency basis, prioritizing those that are internet-facing. If patching cannot be performed immediately, implement the recommended compensating controls, especially the restriction of WAN access to the management interface, to mitigate the immediate risk of compromise. Security teams should assume active exploitation is occurring and hunt for indicators of compromise within the network.

Executive Summary:
A critical remote code execution vulnerability exists in multiple Tenda products, including the WH450 router. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted request to the device's web interface, causing a buffer overflow that allows for complete system compromise. Due to the high severity (CVSS 9.8) and the public availability of an exploit, this vulnerability poses a significant and immediate risk to affected networks.

Vulnerability Details

CVE-ID: CVE-2025-14878

Affected Software: A security flaw has been discovered in Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of other affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the HTTP Request Handler component of the device's firmware. Specifically, the function processing requests to the /goform/wirelessRestart endpoint fails to properly validate the length of the GO argument. A remote, unauthenticated attacker can send a crafted HTTP POST request with an overly long value for the GO parameter, overflowing the stack buffer and overwriting the function's return address, which enables the execution of arbitrary code on the device with root privileges.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation would grant an attacker complete control over the affected network device. The potential consequences include interception and exfiltration of sensitive network traffic, disruption of internet connectivity, and using the compromised device as a pivot point to launch further attacks against the internal network. This could lead to significant data breaches, operational downtime, reputational damage, and the compromise of other critical systems within the organization's environment.

Remediation Plan

Immediate Action: Immediately update all affected Tenda devices to the latest firmware version provided by the vendor to patch this vulnerability. After patching, review system and access logs for any unusual activity or signs of compromise preceding the update.

Proactive Monitoring: Implement monitoring rules to detect and alert on anomalous HTTP requests to the /goform/wirelessRestart endpoint, particularly those containing an unusually long GO parameter. Monitor network traffic for unexpected outbound connections originating from the Tenda devices. Utilize network intrusion detection/prevention systems (IDS/IPS) with signatures for CVE-2025-14878.

Compensating Controls: If immediate patching is not feasible, disable remote/WAN access to the device's web administration interface to prevent remote exploitation. If the interface must be exposed, place it behind a Web Application Firewall (WAF) with rules designed to block oversized parameter values for the /goform/wirelessRestart URI. Network segmentation can also limit the potential impact by isolating the vulnerable device from critical internal assets.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of December 18, 2025, a proof-of-concept exploit for this vulnerability has been publicly released. This significantly increases the likelihood of widespread exploitation by threat actors. While this CVE is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its critical nature and the availability of a public exploit make it a prime target for opportunistic attacks against internet-facing devices.

Analyst Recommendation

Given the critical severity (CVSS 9.8), the remote and unauthenticated nature of the attack, and the public availability of an exploit, this vulnerability requires immediate attention. We strongly recommend that all affected Tenda products are patched without delay. Organizations should prioritize this remediation activity as if it were on the CISA KEV list due to the high probability of active exploitation. If patching cannot be performed immediately, the compensating controls outlined above must be implemented as a matter of urgency to reduce the attack surface.

Executive Summary:
A critical remote code execution vulnerability has been identified in multiple Tenda networking products. The flaw allows a remote, unauthenticated attacker to take complete control of an affected device by sending a specially crafted request. Due to the public availability of an exploit, this vulnerability poses a severe and immediate threat to network security, potentially leading to data breaches and further network compromise.

Vulnerability Details

CVE-ID: CVE-2025-14665

Affected Software: Tenda Multiple Products

Affected Versions: Tenda WH450 version 1.0.0.18 is confirmed to be affected. See vendor advisory for a complete list of specific affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the HTTP Request Handler component of the device's firmware. An unauthenticated remote attacker can exploit this by sending a crafted HTTP request to the /goform/DhcpListClient endpoint. By providing an overly long string in the page argument of this request, the attacker can overwrite the program's stack, enabling the execution of arbitrary code with the privileges of the device's web server process, typically root.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation allows an attacker to gain full administrative control over the affected network device. This could lead to severe consequences, including interception and theft of network traffic, unauthorized access to the internal network (pivoting), disruption of internet connectivity, and the use of the compromised device in botnet attacks. The risk to data confidentiality, integrity, and availability is exceptionally high.

Remediation Plan

Immediate Action: Update affected Tenda products to the latest firmware version as recommended by the vendor. This is the most effective way to mitigate the vulnerability.

Proactive Monitoring: Monitor web server access logs for any requests to the /goform/DhcpListClient endpoint, specifically looking for requests with unusually long values for the page parameter. Monitor network traffic for any anomalous outbound connections from Tenda devices, which could indicate a successful compromise and command-and-control communication.

Compensating Controls: If patching cannot be performed immediately, restrict access to the device's web management interface from the internet and other untrusted networks. If available, deploy Web Application Firewall (WAF) rules to block malicious requests targeting the vulnerable endpoint.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of December 14, 2025, a proof-of-concept exploit for this vulnerability has been publicly released. This significantly lowers the bar for attackers and increases the likelihood of widespread exploitation. While this CVE is not currently on the CISA KEV list, its critical nature and the public exploit make it a high-priority target for threat actors.

Analyst Recommendation

Given the critical 9.8 CVSS score, the remote and unauthenticated nature of the vulnerability, and the confirmed availability of a public exploit, immediate remediation is strongly advised. Organizations must prioritize applying the vendor-supplied firmware updates to all affected Tenda devices without delay. Until patches are applied, implement compensating controls and enhance monitoring to detect potential exploitation attempts against internet-facing devices.

Executive Summary:
A high-severity vulnerability has been discovered across multiple products, with the Tenda AC20 router being a specifically identified example, which could allow a remote attacker to take complete control of an affected device. Successful exploitation grants the attacker full administrative access, potentially leading to network traffic interception, unauthorized access to the internal network, and service disruption.

Vulnerability Details

CVE-ID: CVE-2025-14656

Affected Software: weakness Multiple Products

Affected Versions: See vendor advisory for specific affected versions. Tenda AC20 firmware version 16.x and prior is known to be affected.

Vulnerability: This vulnerability is a command injection flaw within the web management interface of affected devices, such as the Tenda AC20. An authenticated attacker can send a specially crafted HTTP request to an administrative endpoint responsible for system diagnostics. Due to insufficient input sanitization of user-supplied data, the attacker can inject and execute arbitrary shell commands on the underlying operating system with root-level privileges, resulting in a full compromise of the device.

Business Impact

This vulnerability is rated as high severity with a CVSS score of 8.8. A successful exploit grants an attacker complete control over a core network device, posing a significant risk to the organization. Potential consequences include the ability to monitor, intercept, or redirect all network traffic (data theft, man-in-the-middle attacks), use the compromised device as a pivot point to attack other internal systems, and disrupt network connectivity (denial of service). The compromise of a network perimeter device can lead to a full breach of the corporate network, impacting data confidentiality, integrity, and availability.

Remediation Plan

Immediate Action: Immediately apply the security updates provided by the vendor to all affected devices. After patching, it is crucial to monitor for any signs of exploitation attempts and thoroughly review system and access logs for suspicious activity that may have occurred prior to the patch deployment.

Proactive Monitoring: Monitor network traffic for unusual outbound connections originating from the management interfaces of affected devices. Review web server access logs for repeated, malformed requests to administrative endpoints, which could indicate scanning or exploitation attempts. Look for the execution of unexpected processes (e.g., sh, wget, curl) in system logs.

Compensating Controls: If immediate patching is not feasible, restrict network access to the device's management interface to a secure, isolated administrative network or a limited set of trusted IP addresses. Disable remote/WAN management functionality entirely and ensure a strong, unique administrative password is in use to make authenticated exploitation more difficult.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of December 15, 2025, there are no known public proof-of-concept exploits for this vulnerability. Threat intelligence sources do not indicate any active exploitation in the wild. However, vulnerabilities of this type in network devices are prime targets for threat actors seeking to build botnets or establish persistence within a target network.

Analyst Recommendation

This vulnerability represents a critical risk to network security and requires immediate attention. Organizations using affected products must prioritize the application of vendor-supplied security patches, focusing first on internet-facing systems. Although CVE-2025-14656 is not currently listed on the CISA KEV catalog, its high severity and potential for remote code execution warrant urgent remediation to prevent a potential compromise of the network infrastructure.

Executive Summary:
A high-severity vulnerability has been discovered in multiple products from the vendor "security," allowing an unauthenticated remote attacker to potentially execute arbitrary code and take full control of affected systems. Due to the high CVSS score of 8.8, this flaw presents a significant risk of system compromise, data theft, and service disruption. Organizations are urged to apply the vendor-supplied security updates immediately to mitigate this threat.

Vulnerability Details

CVE-ID: CVE-2025-14655

Affected Software: security Multiple Products

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The vulnerability is an unauthenticated command injection flaw within the web management interface of the affected products. An attacker can send a specially crafted HTTP request to a specific API endpoint, embedding arbitrary operating system commands within a request parameter. The application fails to properly sanitize this input before passing it to a system shell, leading to the execution of the injected commands with the privileges of the web server process, which is often root. This flaw was initially discovered in the Tenda AC20 router, but the vulnerable component is shared across multiple products from the vendor "security."

Business Impact

This vulnerability is rated as high severity with a CVSS score of 8.8. Successful exploitation could have a severe impact on business operations. An attacker could gain complete control over the affected device, leading to the theft of sensitive data (Confidentiality), unauthorized modification of system configurations and data (Integrity), and denial of service conditions that disrupt network availability (Availability). Compromised devices could also be used as a pivot point to launch further attacks against the internal network, significantly expanding the scope of a potential breach.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor across all affected products without delay. Prioritize patching for systems that are exposed to the internet. After patching, review system and access logs for any signs of compromise that may have occurred before the patch was applied.

Proactive Monitoring: Monitor web server access logs on affected devices for unusual or malformed requests, particularly those containing shell commands (e.g., wget, curl, |, &&, ;). Network monitoring should be configured to detect unexpected outbound connections from these devices to unknown IP addresses. System monitoring should alert on the creation of new user accounts, unexpected running processes, or unauthorized file modifications.

Compensating Controls: If immediate patching is not feasible, implement the following compensating controls:

• Restrict access to the device's web management interface to a trusted network segment or specific IP addresses using firewall rules.
• Deploy a Web Application Firewall (WAF) with rulesets designed to detect and block command injection attempts.
• Ensure robust logging is enabled for the affected systems and that logs are forwarded to a centralized SIEM for correlation and analysis.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of December 15, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity and the relative simplicity of exploiting command injection flaws, it is highly probable that a functional exploit will be developed and released by security researchers or malicious actors in the near future.

Analyst Recommendation

This vulnerability represents a critical risk to the organization. The high CVSS score of 8.8 indicates that it is remotely exploitable without authentication, leading to full system compromise. The immediate priority must be the deployment of vendor-provided security patches. While this CVE is not currently listed in the CISA KEV catalog, its severity makes it a prime candidate for future inclusion. All system owners must treat this as an urgent threat and complete remediation actions or apply compensating controls within the organization's mandated patching window for critical vulnerabilities.

Executive Summary:
A high-severity vulnerability has been identified that allows a remote, unauthenticated attacker to execute arbitrary code and gain complete control of affected network devices. Successful exploitation could lead to a full compromise of the network perimeter, enabling attackers to intercept sensitive data, pivot to internal systems, or disrupt network availability. Due to the critical nature and potential for full system compromise, immediate remediation is strongly advised.

Vulnerability Details

CVE-ID: CVE-2025-14654

Affected Software: was Multiple Products

Affected Versions: See vendor advisory for specific affected versions. The vulnerability was initially identified in Tenda AC20 firmware version 16.

Vulnerability: This vulnerability is a stack-based buffer overflow within the web management interface of the affected devices. An unauthenticated attacker on the network can send a specially crafted HTTP POST request to a specific CGI endpoint. The device fails to properly validate the length of user-supplied input, leading to a buffer overflow that can overwrite critical data on the stack, including the return address. By providing a malicious payload, the attacker can hijack the program's control flow and execute arbitrary code on the underlying operating system with root-level privileges.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit would grant an attacker full administrative control over the network device. The business impact is significant, as a compromised perimeter device can serve as a gateway into the corporate network. Potential consequences include the interception of all network traffic (data exfiltration), disruption of internet connectivity (denial of service), using the device to launch attacks against internal assets, and reputational damage resulting from a security breach originating from compromised infrastructure.

Remediation Plan

Immediate Action: The primary remediation is to apply the security patches provided by the vendor across all affected devices immediately. After patching, review system and access logs for any signs of compromise that may have occurred prior to the update.

Proactive Monitoring: IT security teams should actively monitor network traffic for anomalous requests directed at the web management interfaces of affected devices. Specifically, look for unusually long or malformed HTTP POST requests. Enable logging on network devices and monitor for unexpected reboots, configuration changes, or outbound connections to suspicious IP addresses, which could indicate a successful compromise.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Disable remote/WAN access to the device's web management interface.
• Restrict access to the management interface to a dedicated and trusted administrative VLAN or IP address range.
• Deploy an Intrusion Prevention System (IPS) with rules that can detect and block buffer overflow attack signatures.

Exploitation Status

Public Exploit Available: true

Analyst Notes: As of December 15, 2025, proof-of-concept (PoC) exploit code has been publicly released, significantly lowering the bar for attackers to leverage this vulnerability. While there are no widespread reports of active exploitation in the wild at this time, the availability of a public PoC makes targeted attacks highly likely in the near future.

Analyst Recommendation

Given the high severity (CVSS 8.8), the potential for remote code execution, and the public availability of exploit code, this vulnerability poses a critical risk to the organization. The recommendation is to treat this as a top priority for remediation. All affected devices must be patched immediately. Although this CVE is not currently on the CISA KEV list, its characteristics make it a prime candidate for future inclusion, and organizations should act as if it is already under active exploitation.

Executive Summary:
A high-severity vulnerability has been identified in multiple Tenda products, notably the Tenda CH22. This flaw could allow a remote, unauthenticated attacker to execute arbitrary code on the affected device, leading to a complete system compromise. Successful exploitation could result in network traffic interception, unauthorized access to the internal network, or the device being used in a larger attack, such as a botnet.

Vulnerability Details

CVE-ID: CVE-2025-13400

Affected Software: Tenda Multiple Products

Affected Versions: See vendor advisory for a complete list of affected products and versions. The Tenda CH22 running firmware version 1 is known to be affected.

Vulnerability: This vulnerability is a command injection flaw within the device's web management interface. An unauthenticated attacker can send a specially crafted HTTP request to a specific API endpoint on the device. Due to insufficient input sanitization, the attacker can inject arbitrary operating system commands into a parameter of this request, which are then executed on the underlying system with root-level privileges.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit would grant an attacker complete control over the network device. This could lead to significant business disruption, including the interception of sensitive corporate and customer data, unauthorized access to internal network segments, and the ability to launch further attacks from a trusted position within the network. The compromised device could also be co-opted into a botnet for use in Distributed Denial-of-Service (DDoS) attacks, potentially causing reputational damage.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately. System administrators should visit the official Tenda support website to download and install the appropriate patched firmware for all affected devices. After patching, review device access logs for any signs of compromise prior to the update.

Proactive Monitoring: Monitor web server logs on the affected devices for unusual or malformed HTTP requests, particularly those containing shell metacharacters (e.g., ;, |, &&, $()). Network traffic should be monitored for unexpected outbound connections from the devices, which could indicate communication with an attacker's command-and-control (C2) server. Enable and centralize logging where possible to retain forensic data.

Compensating Controls: If immediate patching is not feasible, implement network-level controls to mitigate risk. Restrict access to the device's web management interface to a trusted, internal management network. Ensure the management interface is not exposed to the internet. If remote management is required, it should be done over a secure channel like a VPN with strong access controls.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 20, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity and the relative simplicity of exploiting command injection flaws in embedded devices, it is highly probable that a functional exploit will be developed and released by threat actors in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8 and the potential for complete device takeover, this vulnerability poses a significant risk to the organization. We strongly recommend that the vendor-supplied patches be applied to all affected Tenda devices as a top priority. While this CVE is not currently listed on the CISA KEV list, its critical nature warrants immediate attention. Proactive application of the patch and implementation of compensating controls are crucial to prevent potential exploitation.

Executive Summary:
A high-severity vulnerability has been identified in Tenda AC20 routers, allowing an unauthenticated attacker to remotely execute arbitrary code and gain full control of the device. Successful exploitation could lead to a complete compromise of the network perimeter, enabling attackers to intercept sensitive data, attack other internal systems, or incorporate the device into a botnet. Immediate patching is critical to mitigate the significant risk to network security.

Vulnerability Details

CVE-ID: CVE-2025-13258

Affected Software: Tenda AC20

Affected Versions: Firmware versions up to and including 16.03.07.45_en

Vulnerability: The vulnerability is a remote command injection flaw in the web management interface of the Tenda AC20 router. An unauthenticated attacker on the same network segment can send a specially crafted HTTP POST request to a specific administrative endpoint. The device fails to properly sanitize user-supplied input within a particular parameter, allowing the injection and execution of arbitrary operating system commands with root-level privileges on the device.

Business Impact

This vulnerability presents a significant risk to the organization, reflected by its High severity rating with a CVSS score of 8.8. An attacker who successfully exploits this flaw can gain complete control over the affected network device. This could lead to a severe breach of confidentiality, integrity, and availability, including the interception of all network traffic, unauthorized access to internal network resources, deployment of malware, and using the compromised router to launch further attacks against internal or external targets.

Remediation Plan

Immediate Action: Identify all vulnerable Tenda AC20 devices within the environment and apply the latest security updates released by the vendor immediately. After patching, verify that the update was successful and the device is running a fixed firmware version.

Proactive Monitoring: Monitor firewall and web server logs for suspicious requests targeting the router's web management interface, particularly from untrusted sources. Network Intrusion Detection Systems (NIDS) should be configured with signatures to detect potential exploitation attempts. Monitor for unusual outbound traffic from the router, which could indicate a compromise.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the attack surface:

• Disable remote (WAN) management of the device.
• Use firewall rules or Access Control Lists (ACLs) to restrict access to the web management interface to only trusted IP addresses or a dedicated management VLAN.
• Ensure the device is not using default administrative credentials.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 17, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, due to the trivial nature of command injection vulnerabilities and the widespread deployment of these devices, it is highly probable that a functional exploit will be developed and released by threat actors in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8 and the critical risk of remote code execution on a network perimeter device, this vulnerability must be addressed with the highest priority. Organizations are strongly advised to apply the vendor-supplied patches immediately to all affected Tenda AC20 routers. While this vulnerability is not currently on the CISA KEV list, its severity makes it a prime candidate for future inclusion, and organizations should treat it as an active and critical threat.

Executive Summary:
A high-severity vulnerability has been discovered in multiple Tenda products, including the Tenda AC10 router. This flaw could allow a remote attacker to execute arbitrary commands on the affected device, granting them complete control. Successful exploitation could lead to network traffic interception, data theft, and the compromise of other devices on the internal network.

Vulnerability Details

CVE-ID: CVE-2025-12622

Affected Software: was Multiple Products

Affected Versions: The Tenda AC10 with firmware version 16.x is confirmed to be affected. See the vendor advisory for a complete list of all affected products and versions.

Vulnerability: This vulnerability is a command injection flaw in the web-based management interface of the affected devices. An attacker can send a specially crafted HTTP request containing malicious shell commands to a specific administrative endpoint. The input is not properly sanitized, allowing the embedded commands to be executed on the underlying operating system with root-level privileges, giving the attacker full control over the router.

Business Impact

This vulnerability presents a significant risk to the organization, classified as High severity with a CVSS score of 8.8. An attacker who successfully exploits this flaw can gain complete control of the network gateway. This could lead to severe consequences, including the interception of sensitive data (e.g., credentials, financial information), redirection of users to malicious websites, and using the compromised device as a pivot point to launch further attacks against the internal network. The integrity, confidentiality, and availability of network services are all at high risk.

Remediation Plan

Immediate Action: Apply the security updates released by the vendor to all affected devices immediately. After patching, monitor for any signs of post-exploitation activity by thoroughly reviewing system and access logs for unusual connections or commands executed prior to the patch.

Proactive Monitoring: Implement enhanced monitoring of network traffic originating from the management interface of affected devices. Look for unusual outbound connections, unexpected configuration changes, or anomalous spikes in traffic. Review web server access logs for suspicious POST requests containing shell commands or special characters (e.g., ;, |, &&) directed at administrative endpoints.

Compensating Controls: If immediate patching is not feasible, implement the following controls:

• Restrict access to the device's web management interface to a dedicated, trusted administrative network or specific IP addresses.
• Ensure that remote (WAN-side) administration is disabled.
• Deploy network segmentation to limit the potential lateral movement of an attacker should the device be compromised.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 3, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity and the history of widespread attacks on router vulnerabilities, it is highly probable that threat actors will develop and deploy exploits in the near future. Proactive patching is critical.

Analyst Recommendation

Given the high CVSS score of 8.8, this vulnerability requires immediate attention. Organizations must prioritize the deployment of vendor-supplied patches to all affected Tenda devices. Although this CVE is not currently listed on the CISA KEV list, its severity makes it a prime target for opportunistic attackers. We strongly recommend applying the security updates and implementing the suggested compensating controls without delay to prevent potential network compromise.

Executive Summary:
A high-severity vulnerability has been identified in certain Tenda networking products, which could allow a remote, unauthenticated attacker to take complete control of an affected device. Successful exploitation could lead to network traffic interception, data theft, and unauthorized access to the internal network. Organizations are urged to apply vendor-supplied security updates immediately to mitigate this significant risk.

Vulnerability Details

CVE-ID: CVE-2025-12619

Affected Software: Tenda Multiple Products

Affected Versions: See vendor advisory for specific affected versions. The Tenda A15 is a confirmed affected product.

Vulnerability: This vulnerability is a command injection flaw in the web management interface of affected Tenda devices. An unauthenticated remote attacker can exploit this by sending a specially crafted HTTP request to a specific API endpoint. The device fails to properly sanitize user-supplied input within this request, allowing the attacker to inject and execute arbitrary operating system commands with root-level privileges, resulting in a complete compromise of the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit would grant an attacker full administrative control over the network device, posing a critical risk to the organization. Potential consequences include the ability to monitor, redirect, or block all network traffic, steal sensitive credentials and data, use the compromised device as a pivot point to attack other systems on the internal network, or incorporate the device into a botnet for use in larger attacks like Distributed Denial-of-Service (DDoS).

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor across all affected devices immediately. After patching, system administrators should review device access logs and network traffic for any signs of compromise that may have occurred prior to the update.

Proactive Monitoring: Implement continuous monitoring of network traffic originating from affected devices for unusual patterns, such as connections to unknown external IP addresses or unexpected data transfer volumes. Review web server logs for the management interface, specifically looking for malicious requests containing shell metacharacters (e.g., ;, |, &&, $(), `) or command-like strings.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Disable remote (WAN-side) access to the device's management interface.
• Restrict access to the management interface to a dedicated and trusted management VLAN or specific IP addresses.
• Utilize an upstream firewall or network access control lists (ACLs) to block all untrusted traffic to the device's management ports (typically 80/TCP and 443/TCP).

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 3, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the high severity score and the low complexity of exploitation typically associated with command injection flaws, it is highly probable that a functional proof-of-concept exploit will be developed and released by security researchers or malicious actors in the near future.

Analyst Recommendation

Given the high CVSS score of 8.8 and the potential for complete system compromise, this vulnerability presents a critical risk that requires immediate attention. Organizations must prioritize the deployment of vendor-provided patches to all affected Tenda devices. Although CVE-2025-12619 is not currently listed on the CISA KEV list, its severity makes it a prime target for opportunistic attackers. Proactive patching and implementation of compensating controls are essential to prevent unauthorized access and protect the integrity of the network.

Executive Summary:
A critical vulnerability has been identified in multiple Tenda products, allowing an unauthenticated remote attacker to execute arbitrary code on affected devices. Successful exploitation could result in a complete compromise of the network device, enabling an attacker to intercept traffic, pivot to internal networks, or disrupt services. Organizations are urged to apply vendor-supplied patches immediately to mitigate this high-risk threat.

Vulnerability Details

CVE-ID: CVE-2025-12618

Affected Software: Tenda Multiple Products

Affected Versions: The vulnerability is confirmed in Tenda AC8 firmware version 16.x. See vendor advisory for a complete list of all affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the device's web server process. An unauthenticated attacker on the same network segment can send a specially crafted POST request to the device's management interface. The server fails to properly validate the length of user-supplied data in a specific parameter, leading to a buffer overflow that can be leveraged to overwrite the return address on the stack and achieve arbitrary code execution with root privileges.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8, posing a significant risk to the organization. A successful exploit grants an attacker complete control over the affected network device. This could lead to severe consequences, including the interception of sensitive network traffic, unauthorized access to internal network resources, deployment of malware, and the ability to use the compromised device in larger attacks like DDoS botnets. The potential for data breaches, operational disruption, and reputational damage is substantial.

Remediation Plan

Immediate Action: Apply the security updates released by the vendor to all affected devices immediately. Prioritize patching for internet-facing or otherwise exposed systems. After patching, monitor for any indicators of compromise and review device access logs for any unauthorized or suspicious activity preceding the update.

Proactive Monitoring: Implement enhanced monitoring of network traffic to and from affected devices. Specifically, look for malformed POST requests in web server logs, unexpected outbound connections from the devices, and any unusual spikes in CPU or memory usage that could indicate a malicious process is running.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the attack surface. Restrict access to the device's web management interface to a trusted management network and block access from the internet and other untrusted segments. If possible, deploy a Web Application Firewall (WAF) with rules to inspect and block malicious requests targeting this vulnerability.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 3, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the low complexity of exploitation and the high potential impact, it is highly probable that a functional proof-of-concept exploit will be developed and released by security researchers or threat actors in the near future.

Analyst Recommendation

Given the high severity (CVSS 8.8) and the potential for complete system compromise, this vulnerability requires immediate attention. We strongly recommend that all affected Tenda products are patched without delay, prioritizing devices that are accessible from the internet. Although this CVE is not currently listed on the CISA KEV catalog, its characteristics make it a prime candidate for future inclusion and an attractive target for attackers. Organizations should treat this as a critical priority and assume it will be actively exploited soon.

Executive Summary:
A high-severity vulnerability has been discovered in multiple Tenda products, including the Tenda AC21 router. This flaw could allow a remote, unauthenticated attacker to gain complete control over an affected device, potentially leading to data theft, network disruption, and further attacks on the internal network. Organizations are urged to apply the vendor-provided security patches immediately to mitigate this significant risk.

Vulnerability Details

CVE-ID: CVE-2025-12611

Affected Software: was Multiple Products

Affected Versions: The Tenda AC21 with firmware version 16.x is confirmed to be affected. See vendor advisory for a complete list of all affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the device's web server process that handles administrative functions. An unauthenticated attacker on the same network, or remotely if the management interface is exposed to the internet, can send a specially crafted HTTP POST request with an overly long value to a specific parameter. This action overwrites the program's stack, allowing the attacker to execute arbitrary code with root-level privileges on the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Successful exploitation would grant an attacker complete administrative control over the network device. This could lead to severe business consequences, including the interception of sensitive network traffic, unauthorized access to internal network resources, and the ability to launch further attacks from a trusted position within the network. The compromised device could also be co-opted into a botnet for use in large-scale Distributed Denial of Service (DDoS) attacks, causing reputational damage and potential service disruption.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates released by the vendor to all affected devices immediately. Before and after patching, it is critical to monitor for any signs of compromise. Review system and access logs for unusual activity, unexpected reboots, or configuration changes that could indicate a breach occurred prior to the patch being applied.

Proactive Monitoring: Implement enhanced monitoring on network traffic to and from affected devices. Look for suspicious outbound connections to unknown IP addresses, anomalous traffic spikes, or repeated connection attempts to the device's management interface. Intrusion Detection Systems (IDS) should be updated with signatures to detect exploitation of this vulnerability if they become available.

Compensating Controls: If immediate patching is not feasible, implement the following controls to reduce the risk of exploitation:

• Disable remote/WAN management of the device to prevent attacks from the internet.
• Use a firewall to restrict access to the device's management interface to only trusted administrative workstations.
• Implement network segmentation to isolate the vulnerable device from critical servers and sensitive corporate assets.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 3, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity score and the prevalence of Tenda devices, it is highly probable that threat actors will develop exploits in the near future. The "was" vendor name in the source data appears to be a typo; the affected product is manufactured by Tenda.

Analyst Recommendation

Due to the critical nature of this vulnerability (CVSS 8.8), which allows for remote code execution, we strongly recommend that organizations prioritize the immediate patching of all affected Tenda devices. While this CVE is not currently on the CISA KEV list, its high impact score makes it a prime candidate for future inclusion and an attractive target for attackers. In addition to patching, organizations should ensure that compensating controls, such as disabling WAN management, are implemented as a standard security best practice to harden these critical network devices against future threats.

Executive Summary:
A high-severity vulnerability has been identified in certain Tenda router models, which could allow a remote attacker to gain complete control over the affected device. Successful exploitation could enable an attacker to intercept network traffic, access connected devices, and disrupt network services. Organizations using the affected products are urged to apply security updates immediately to prevent a potential network compromise.

Vulnerability Details

CVE-ID: CVE-2025-12596

Affected Software: Tenda AC23

Affected Versions: Firmware version 16.03.07.45 and prior. See vendor advisory for a complete list of affected products.

Vulnerability: This vulnerability is a post-authentication command injection flaw within the router's web-based administration interface. An authenticated attacker can send a specially crafted HTTP request to a specific administrative function (e.g., network diagnostic tools). Due to insufficient input validation, the attacker can inject and execute arbitrary operating system commands with root privileges on the device, leading to a full compromise of the router.

Business Impact

With a CVSS score of 8.8, this vulnerability is rated as High severity. A successful exploit grants an attacker complete administrative control over the network gateway, posing a significant risk to the organization. Potential consequences include the interception and exfiltration of sensitive data, pivoting to attack other internal network resources, deployment of malware, and using the compromised device in botnet attacks. This could lead to data breaches, operational downtime, and reputational damage.

Remediation Plan

Immediate Action: Apply the security patches released by the vendor to all affected Tenda routers immediately. Prioritize patching for internet-facing and critical network devices. After applying the update, verify that the new firmware version is installed correctly and review device access logs for any signs of unauthorized access or suspicious activity prior to patching.

Proactive Monitoring: Monitor outbound network traffic from the router for connections to unknown or malicious destinations. Security teams should review router system and administration logs for unusual commands, unexpected configuration changes, or access from unfamiliar IP addresses. Intrusion Detection Systems (IDS) should be updated with signatures to detect exploitation attempts against this CVE.

Compensating Controls: If patching cannot be performed immediately, restrict access to the router's administration interface to a dedicated, secure management network or a limited set of trusted IP addresses. Disable remote (WAN-side) administration entirely. If available, deploy a Web Application Firewall (WAF) to inspect traffic to the administration interface and block malicious requests.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 2, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, command injection vulnerabilities in router firmware are frequently and quickly weaponized by threat actors after disclosure. Given the high severity and ease of exploitation for an authenticated attacker, the development of a public proof-of-concept exploit is highly probable.

Analyst Recommendation

Given the high severity (CVSS 8.8) and the potential for complete network compromise, this vulnerability requires immediate attention. We strongly recommend that all affected Tenda devices are patched without delay, following the vendor's guidance. Although this CVE is not currently listed on the CISA KEV catalog, its critical nature makes it a prime target for future attacks. Organizations must prioritize patching and implement the proactive monitoring and compensating controls outlined in this report to mitigate the significant risk posed by this vulnerability.

Executive Summary:
A high-severity vulnerability has been discovered in Tenda AC23 router firmware that could allow a remote, unauthenticated attacker to take complete control of the affected device. Successful exploitation could lead to network traffic interception, denial of service, or the compromise of the internal network. Organizations are urged to apply the vendor-provided security patch immediately to mitigate the significant risk of a system compromise.

Vulnerability Details

CVE-ID: CVE-2025-12595

Affected Software: Tenda AC23 Firmware

Affected Versions: Version 16.03.07.45_cn and prior. See vendor advisory for a complete list of affected versions.

Vulnerability: This vulnerability is a stack-based buffer overflow within the web server component of the Tenda AC23 firmware. An unauthenticated attacker on the same network (or remotely, if WAN management is enabled) can send a specially crafted HTTP POST request to the device's management interface. The server fails to properly validate the length of user-supplied input, leading to an overflow that can overwrite the return address on the stack, allowing the attacker to execute arbitrary code with root-level privileges on the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. A successful exploit would result in a complete compromise of the network device, granting an attacker full administrative control. The potential business impact includes the loss of data confidentiality, as the attacker could intercept all unencrypted network traffic passing through the router. The integrity of the network is at risk, as the attacker could redirect traffic to malicious sites or use the device to launch further attacks against the internal network. Finally, the availability of network services could be impacted if the attacker renders the device inoperable or uses it as part of a DDoS botnet.

Remediation Plan

Immediate Action: The primary remediation is to apply the security update provided by the vendor immediately. Disconnect affected devices from the internet if patching cannot be performed right away. After patching, review system and access logs for any signs of compromise that may have occurred prior to the update.

Proactive Monitoring: System administrators should monitor network traffic for anomalous HTTP requests directed at the router's management interface, especially from untrusted sources. Monitor for unexpected device reboots, unexplained configuration changes, or high CPU utilization. Employ network intrusion detection systems (NIDS) to look for signatures associated with this CVE as they become available.

Compensating Controls: If immediate patching is not feasible, the following compensating controls should be implemented:

• Disable remote (WAN) administration of the device.
• Use an access control list (ACL) to restrict access to the device's management interface to only trusted IP addresses or a dedicated management VLAN.
• Ensure a strong, unique administrative password is configured for the device to hinder any potential post-exploitation activity.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of November 2, 2025, there are no known public proof-of-concept exploits or active attacks targeting this vulnerability. However, due to the high severity score and the prevalence of the affected device, it is highly probable that security researchers and threat actors will develop an exploit in the near future by reverse-engineering the patch.

Analyst Recommendation

Given the high CVSS score of 8.8 and the potential for remote code execution, this vulnerability poses a significant threat to the organization. We strongly recommend that all affected Tenda AC23 devices be patched immediately, prioritizing those that are internet-facing or protect critical network segments. Although this CVE is not currently listed on the CISA KEV catalog, its severity makes it a prime candidate for future inclusion. If patching must be delayed, the compensating controls listed above should be implemented as a temporary but less effective mitigation strategy.

Executive Summary:
A high-severity vulnerability has been discovered in Tenda networking products, specifically affecting the Tenda O3 device. This flaw could allow an unauthenticated remote attacker to execute arbitrary code and gain complete control over the affected device. Successful exploitation could lead to network traffic interception, data theft, or the compromise of the entire network segment the device manages.

Vulnerability Details

CVE-ID: CVE-2025-12211

Affected Software: Tenda Multiple Products (Tenda O3 confirmed)

Affected Versions: Tenda O3 Version 1. See vendor advisory for a complete list of other affected products and versions.

Vulnerability: This vulnerability is a command injection flaw in the web-based management interface of the Tenda O3 device. An unauthenticated attacker with network access to the device's management portal can send a specially crafted HTTP request containing arbitrary commands to a specific API endpoint. The input is not properly sanitized before being passed to a system shell, allowing the attacker to execute commands on the underlying operating system with root-level privileges.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. Exploitation of this flaw poses a significant risk to the organization. A successful attacker could gain full administrative control of the network device, allowing them to intercept, modify, or redirect sensitive network traffic, potentially leading to a data breach. Furthermore, the compromised device could be used as a pivot point to launch further attacks against other systems on the internal network, or be co-opted into a botnet, resulting in service disruption and reputational damage.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately. After patching, review device access logs and system logs for any signs of compromise that may have occurred prior to the update, such as unauthorized configuration changes or logins from unknown IP addresses.

Proactive Monitoring: Implement enhanced monitoring for affected devices. Security teams should look for unusual or malformed HTTP requests to the device's management interface in network traffic logs. Monitor for unexpected outbound connections originating from the device and check for the execution of anomalous processes (e.g., shell scripts, reverse shells) on the device itself.

Compensating Controls: If immediate patching is not feasible, implement the following compensating controls:

• Restrict network access to the device's web management interface to a dedicated and trusted administrative network segment or specific trusted IP addresses.
• If the device must be managed remotely, ensure it is done over a secure channel like a VPN and not exposed directly to the internet.
• Deploy a Web Application Firewall (WAF) or an Intrusion Prevention System (IPS) with rules to detect and block command injection attempts against the device.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of October 27, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, given the high severity and relative simplicity of exploiting command injection flaws in network devices, it is highly probable that threat actors will develop exploits and begin scanning for vulnerable systems in the near future.

Analyst Recommendation

Given the High severity rating (CVSS 8.8), organizations are strongly urged to treat this vulnerability with high priority. The recommended course of action is to apply the vendor-supplied patches to all affected Tenda devices immediately. Although this vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its potential for complete system compromise warrants immediate attention. If patching is delayed, the compensating controls outlined above should be implemented without delay to reduce the attack surface.

Executive Summary:
A high-severity vulnerability has been discovered in Tenda O3 networking equipment, identified as CVE-2025-12210. This flaw could allow a remote, unauthenticated attacker to gain complete control over the affected device. Successful exploitation could lead to network traffic interception, disruption of service, and unauthorized access to the internal network.

Vulnerability Details

CVE-ID: CVE-2025-12210

Affected Software: Tenda O3

Affected Versions: See vendor advisory for specific affected versions. The initial report identified Tenda O3 V1 firmware.

Vulnerability: This vulnerability is a command injection flaw in the web-based management interface of the Tenda O3 device. An unauthenticated attacker can send a specially crafted HTTP request to a specific endpoint on the device's web server. The input is not properly sanitized before being passed to a system shell, allowing the attacker to execute arbitrary operating system commands with root-level privileges on the device.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8. If exploited, an attacker could gain full administrative control of the network device, posing a significant risk to the organization. Potential consequences include eavesdropping on sensitive network traffic, modifying network configurations to redirect users to malicious sites, using the compromised device as a pivot point to attack other internal systems, or launching denial-of-service attacks that disrupt network connectivity and business operations.

Remediation Plan

Immediate Action: The primary remediation is to apply the security updates provided by the vendor immediately, prioritizing internet-facing or otherwise exposed devices. After patching, organizations should monitor for any signs of post-patch exploitation attempts and review historical access logs for indicators of compromise preceding the update.

Proactive Monitoring: Security teams should monitor for anomalous activity related to the affected devices. This includes inspecting web server logs for unusual or malformed requests to the management interface, monitoring for unexpected outbound network connections from the devices, and creating alerts for any unauthorized configuration changes or reboots.

Compensating Controls: If patching cannot be performed immediately, access to the device's web management interface should be strictly firewalled and restricted to a dedicated, trusted management network. Ensure the management interface is not exposed to the internet. If remote management is necessary, it should be done through a secure VPN with multi-factor authentication.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of October 27, 2025, there are no known public proof-of-concept exploits or active exploitation of this vulnerability in the wild. However, vulnerabilities of this type (unauthenticated remote command execution) in networking hardware are prime targets for threat actors and are often quickly weaponized. The initial report incorrectly listed the vendor as "was" and product as "Multiple Products," but the description specified "Tenda O3 1," which this analysis is based upon.

Analyst Recommendation

Given the high CVSS score of 8.8 and the critical nature of unauthenticated remote code execution vulnerabilities, we recommend that organizations treat this as a critical priority. Although this CVE is not currently on the CISA KEV list, its severity warrants immediate patching. All vulnerable Tenda O3 devices should be identified and updated immediately to prevent potential compromise of the network perimeter.

Executive Summary:
A high-severity vulnerability has been identified in multiple Tenda networking products, including the Tenda O3. This flaw could allow a remote, unauthenticated attacker to execute arbitrary code and gain full control of an affected device, posing a significant risk of network compromise and unauthorized access to sensitive information.

Vulnerability Details

CVE-ID: CVE-2025-12209

Affected Software: Tenda Multiple Products

Affected Versions: See vendor advisory for specific affected versions.

Vulnerability: This vulnerability is a command injection flaw within the web-based management interface of affected Tenda devices. An unauthenticated remote attacker can exploit this by sending a specially crafted HTTP request to the device. The flaw exists because user-supplied input is not properly sanitized before being used in a system command, allowing the attacker to inject and execute arbitrary commands with root privileges on the underlying operating system.

Business Impact

This vulnerability is rated as High severity with a CVSS score of 8.8, posing a significant threat to the organization. Successful exploitation would grant an attacker complete control over the affected network devices. This could lead to severe consequences, including the interception of network traffic, unauthorized access to internal network segments, data exfiltration, and the ability to use the compromised device as a pivot point for further attacks. The potential for service disruption and reputational damage is substantial.

Remediation Plan

Immediate Action: Organizations must prioritize applying the security updates released by the vendor to all affected Tenda devices. This is the most effective way to mitigate the vulnerability. After patching, it is crucial to verify that the updates have been successfully installed and review device logs for any signs of prior compromise.

Proactive Monitoring: Security teams should actively monitor for signs of exploitation. Review web access logs on affected devices for suspicious HTTP requests containing shell metacharacters (e.g., |, &, ;, $()). Monitor network traffic for unexpected outbound connections from the devices, which could indicate a successful compromise. Implement and update network intrusion detection/prevention system (IDS/IPS) signatures designed to detect this specific exploit pattern.

Compensating Controls: If immediate patching is not feasible, implement compensating controls to reduce the attack surface. Restrict network access to the device's web management interface to a limited set of trusted administrative IP addresses using a firewall. If remote management is not required for business operations, disable it entirely to prevent attackers from reaching the vulnerable component.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of October 27, 2025, there are no known public exploits for this vulnerability. However, given the high severity and the relative simplicity of exploiting command injection flaws, it is anticipated that proof-of-concept (PoC) code and active exploitation will emerge shortly. Organizations should operate under the assumption that an exploit is imminent.

Analyst Recommendation

This vulnerability represents a critical risk to the network infrastructure. Although not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog, the high CVSS score of 8.8 indicates a severe potential impact. We strongly recommend that all affected Tenda devices are patched immediately to prevent potential compromise. If patching is delayed, compensating controls must be implemented without delay to restrict all untrusted access to the vulnerable management interface.

Executive Summary:
A critical memory corruption vulnerability has been identified in multiple Tenda networking products. An attacker can remotely exploit this flaw by sending a specially crafted request to the device's web interface, potentially allowing them to execute arbitrary code and gain complete control over the affected device.

Vulnerability Details

CVE-ID: CVE-2025-11423

Affected Software: A vulnerability was found in Tenda Multiple Products

Affected Versions: Tenda CH22 version 1.0.0.1 is confirmed affected. As the vulnerability impacts multiple products, see the vendor advisory for a complete list of specific affected versions.

Vulnerability: This is a memory corruption vulnerability within the formSafeEmailFilter function, accessible via the /goform/SafeEmailFilter web endpoint. An unauthenticated remote attacker can trigger this vulnerability by sending a malicious web request that includes a specially manipulated page argument. The improper handling of this argument by the function leads to a memory corruption condition, which can be leveraged by an attacker to cause a denial-of-service or, more critically, achieve arbitrary code execution on the device.

Business Impact

This vulnerability presents a critical risk to the organization, reflected by its CVSS score of 9.8. Successful exploitation could lead to a complete compromise of the affected Tenda networking devices. An attacker gaining control of these devices could intercept sensitive network traffic, pivot to attack other systems on the internal network, disrupt network availability, or incorporate the devices into a botnet for use in larger-scale attacks. The potential for remote, unauthenticated exploitation significantly increases the likelihood of an attack.

Remediation Plan

Immediate Action: Update A vulnerability was found in Tenda Multiple Products to the latest version. After applying the patch, it is essential to monitor for any subsequent exploitation attempts and review access logs for any suspicious activity that may have occurred prior to the update.

Proactive Monitoring: Monitor web server logs for unusual or malformed requests to the /goform/SafeEmailFilter endpoint, paying close attention to the page argument. Network monitoring should be configured to detect unexpected outbound connections or traffic patterns originating from the Tenda devices. Watch for unexplained system reboots or crashes, which could indicate exploitation attempts.

Compensating Controls: If immediate patching is not feasible, restrict access to the device's web administration interface to a dedicated and trusted management network. If exposed to the internet, place the device behind a Web Application Firewall (WAF) or Intrusion Prevention System (IPS) with signatures designed to detect and block attempts to exploit this vulnerability.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Oct 8, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the critical severity and the low complexity of the attack vector, it is highly probable that a functional exploit will be developed and released by security researchers or malicious actors in the near future.

Analyst Recommendation

Given the critical CVSS score of 9.8 and the potential for complete system compromise, this vulnerability requires immediate attention. Organizations must prioritize the identification and patching of all affected Tenda devices. Although this CVE is not currently listed on the CISA KEV catalog, its severity makes it a prime candidate for future inclusion and indicates a high risk of exploitation. If patching cannot be performed immediately, the compensating controls listed above must be implemented as a matter of urgency to reduce the attack surface.

Executive Summary:
A critical remote code execution vulnerability, identified as CVE-2025-11418, has been discovered in multiple Tenda products. This flaw allows an unauthenticated remote attacker to take complete control of an affected device, posing a severe risk to network security, data confidentiality, and operational continuity. Immediate patching is required to mitigate the threat of a full network compromise.

Vulnerability Details

CVE-ID: CVE-2025-11418

Affected Software: Tenda Multiple Products

Affected Versions: Tenda CH22 up to version 1.0.0.1. See vendor advisory for a complete list of other affected products and versions.

Vulnerability: The vulnerability is a stack-based buffer overflow within the HTTP Request Handler component. Specifically, the formWrlsafeset function, accessible via the /goform/AdvSetWrlsafeset endpoint, fails to properly validate the length of user-supplied input. An unauthenticated attacker can send a specially crafted HTTP POST request with an overly long parameter, causing a buffer overflow that overwrites the stack's return address, leading to arbitrary code execution with the privileges of the web server process, which is typically root on these devices.

Business Impact

This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation allows an attacker to gain complete administrative control over the affected network device. The potential consequences include interception and theft of all network traffic, unauthorized access to the internal network, deployment of malware, and using the compromised device as part of a larger botnet for launching further attacks. This represents a significant risk to data confidentiality, system integrity, and the availability of network services.

Remediation Plan

Immediate Action: Immediately identify all vulnerable Tenda devices within the environment and update the firmware to the latest version provided by the vendor. After patching, monitor for any signs of post-compromise activity and review historical access logs for suspicious requests to the vulnerable endpoint.

Proactive Monitoring: Configure network monitoring and firewall logging to detect and alert on anomalous HTTP POST requests to the /goform/AdvSetWrlsafeset URI on Tenda devices. Monitor for unexpected device reboots or crashes, which could indicate failed exploitation attempts.

Compensating Controls: If patching cannot be performed immediately, implement the following controls:

• Disable WAN (internet-facing) access to the device's web administration interface.
• Use network segmentation and apply access control lists (ACLs) to restrict access to the device's management interface to only trusted administrative workstations.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Oct 8, 2025, there are no known public proof-of-concept exploits or active exploitation campaigns targeting this vulnerability. However, due to the critical severity and the relative simplicity of exploiting stack-based buffer overflows in embedded devices, it is highly probable that threat actors will develop and deploy exploits in the near future.

Analyst Recommendation

Given the critical 9.8 CVSS score, this vulnerability requires immediate attention. The risk of unauthenticated remote code execution on a network perimeter device is severe. We strongly recommend that organizations prioritize the immediate application of vendor-supplied firmware updates to all affected Tenda products. Although this vulnerability is not currently listed on the CISA KEV catalog, its critical nature makes it a prime candidate for future inclusion and widespread exploitation.