Description Summary:
A missing permission check in the MediaTek Bluetooth driver allows local, low-privilege users to escalate privileges and access restricted interfaces without user interaction.

Executive Summary:
A missing authorization flaw (CWE-862) in the MediaTek Bluetooth driver enables local privilege escalation on devices using specific chipsets.

Vulnerability Details

CVE-ID: CVE-2026-20495

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT7902, MT7920, MT7921, MT7922, MT7925, MT7927

Vulnerability: The Bluetooth driver contains a missing permission check (CWE-862), which allows a local attacker with standard user privileges to access interfaces that should be restricted to higher-privilege processes. Exploitation requires no user interaction.

Business Impact

This vulnerability allows a local, low-privilege user to gain elevated capabilities, potentially leading to full system compromise or unauthorized access to sensitive information handled by the Bluetooth subsystem. With a CVSS score of 7.8, this flaw represents a significant risk to the security posture of any device utilizing these chipsets, particularly in mobile or embedded environments.

Remediation Plan

Immediate Action: Apply the vendor-provided patch WCNCR00488300 to the affected MediaTek chipset drivers as soon as it is made available by the device manufacturer.

Proactive Monitoring: Monitor system logs for unusual privilege escalation attempts or unauthorized access attempts to hardware-level interfaces.

Compensating Controls: Limit physical and local access to the device to prevent unauthorized users from executing code that could leverage this privilege escalation flaw.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of August 11, 2026, MediaTek is not aware of any active exploitation of this vulnerability in the wild. While the EPSS score is low, the ability for local users to escalate privileges without interaction warrants immediate attention.

Analyst Recommendation

This is a critical security update for devices equipped with the identified MediaTek chipsets. Organizations should coordinate with their hardware vendors to verify the availability of patch WCNCR00488300 and ensure it is deployed across all applicable endpoints to mitigate the risk of local privilege escalation.

Description Summary:
MediaTek chipsets contain a privilege escalation vulnerability in the Telephony component due to a missing permission check, allowing unauthorized operations.

Executive Summary:
A high-severity privilege escalation vulnerability in MediaTek chipsets requires immediate attention as it permits unauthorized operations within the Telephony component.

Vulnerability Details

CVE-ID: CVE-2026-20483

Affected Software: MediaTek chipset (MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835)

Affected Versions: See vendor advisory

Vulnerability: This vulnerability involves a missing authorization check (CWE-862) within the Telephony subsystem. It allows an attacker to escalate privileges (PR:N) and perform actions that should otherwise be restricted.

Business Impact

The ability to perform unauthorized operations within the Telephony subsystem can lead to complete control over communication-related functions, impacting both integrity and confidentiality. Given the CVSS score of 7.7, this vulnerability is critical for mobile device security, as it could be exploited to intercept communications or manipulate device settings without user interaction.

Remediation Plan

Immediate Action: Check with the specific mobile device manufacturer for firmware updates that incorporate the latest MediaTek security patch release.

Proactive Monitoring: Monitor device behavior for unexplained Telephony service errors or unauthorized background activity that may indicate an attempt to exploit the chipset firmware.

Compensating Controls: Ensure that the device operating system is fully patched and that users avoid installing applications from untrusted third-party sources to reduce the attack surface.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of August 4, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherent to the chipset firmware, making remediation dependent on manufacturer-distributed firmware updates.

Analyst Recommendation

Device owners and administrators should monitor their device manufacturer's security bulletins for firmware updates addressing this MediaTek chipset vulnerability. Due to the high risk of privilege escalation and potential for full system impact, applying these updates as soon as they are released is essential for maintaining device security.

Description Summary:
A missing bounds check in the MediaTek modem firmware leads to an out-of-bounds read, potentially causing system instability or information disclosure.

Executive Summary:
A vulnerability in the MediaTek modem firmware allows for out-of-bounds read operations, which may cause system crashes or data exposure.

Vulnerability Details

CVE-ID: CVE-2026-20479

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT2735, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6880

Vulnerability: This is an out-of-bounds read (CWE-125) occurring in the modem component due to a missing bounds check. An attacker can exploit this condition to trigger memory access errors, which can result in denial-of-service or potentially the disclosure of sensitive memory contents.

Business Impact

The modem is a critical component for mobile device connectivity and security. An out-of-bounds read can lead to device instability, causing service disruption, or potentially expose sensitive information processed by the modem firmware. With a CVSS score of 7.5, this vulnerability poses a significant risk to the reliability and security of mobile devices utilizing the affected chipsets.

Remediation Plan

Immediate Action: Apply the latest security updates provided by the device manufacturer or the mobile service provider to patch the modem firmware.

Proactive Monitoring: Monitor device performance for unexplained reboots, modem crashes, or anomalous network behavior that could indicate exploitation attempts.

Compensating Controls: Keep device firmware updated and avoid connecting to untrusted or suspicious cellular networks where possible, as modem-level vulnerabilities are often triggered over-the-air.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of August 4, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Modem-level vulnerabilities are difficult to exploit but remain high-value targets for sophisticated adversaries.

Analyst Recommendation

Users and administrators of devices containing the affected MediaTek chipsets must ensure that all official security patches are applied as soon as they are made available by the vendor. Prioritize updates to maintain system stability and prevent potential memory-based attacks against the modem firmware.

Description Summary:
A heap-based buffer overflow in the MediaTek WLAN AP driver, caused by a missing bounds check, permits an attacker to potentially write out-of-bounds memory.

Executive Summary:
An out-of-bounds write vulnerability in MediaTek WLAN drivers poses a critical risk of memory corruption, potentially allowing unauthorized access or system instability.

Vulnerability Details

CVE-ID: CVE-2026-20465

Affected Software: MediaTek chipset

Affected Versions: MediaTek chipsets: MT6890, MT7915, MT7916, MT7981, MT7986

Vulnerability: This is a heap-based buffer overflow (CWE-122) within the WLAN access point driver. The flaw stems from a missing bounds check, allowing an adjacent attacker (AV:A) to trigger the condition without requiring authentication.

Business Impact

With a CVSS score of 8.1 (High), this vulnerability presents a serious threat to devices utilizing these chipsets. Successful exploitation could lead to full system compromise or denial of service, impacting the availability and confidentiality of the wireless network infrastructure dependent on these components.

Remediation Plan

Immediate Action: Apply vendor security updates immediately as advised in the MediaTek Product Security Bulletin for August 2026.

Proactive Monitoring: Review system logs for signs of driver crashes or unexpected service restarts which may indicate exploitation attempts.

Compensating Controls: Disable unnecessary wireless features or bridge modes if firmware updates cannot be applied immediately to reduce the attack surface.

Exploitation Status

Public Exploit Available: No (unknown)

Analyst Notes: As of August 4, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Buffer overflows in driver-level software are highly dangerous, as they often execute with elevated privileges within the kernel or driver context.

Analyst Recommendation

The severity of this memory corruption vulnerability necessitates prompt action. Organizations should work with their hardware vendors to obtain and deploy the relevant firmware patches to ensure the stability and security of their wireless networking environment.

Description Summary:
A missing bounds check in the MediaTek modem firmware allows for an out of bounds write, potentially leading to remote escalation of privilege when connected to a rogue base station.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek chipsets enables remote privilege escalation for attackers controlling a rogue base station.

Vulnerability Details

CVE-ID: CVE-2026-20434

Affected Software: MediaTek Chipset

Affected Versions: MT2735, MT2737, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763

Vulnerability: This vulnerability is a CWE-787 out of bounds write flaw occurring within the modem firmware. It can be triggered by an unauthenticated attacker who successfully lures a user to connect to a rogue base station.

Business Impact

The exploitation of this vulnerability poses a significant risk to mobile device security, potentially granting an attacker full control over the affected hardware. Given the CVSS score of 7.5, this high severity flaw facilitates remote privilege escalation, which could lead to total compromise of device integrity and user data confidentiality. Organizations utilizing devices with these chipsets face elevated risks of corporate espionage or unauthorized access to sensitive communications.

Remediation Plan

Immediate Action: Apply the vendor-provided security update identified by Patch ID MOLY00782946 as soon as it is released by your device manufacturer.

Proactive Monitoring: Monitor device connection logs for unusual base station handovers or unexpected modem behavior that might indicate an attempt to connect to unauthorized cellular infrastructure.

Compensating Controls: Advise users to disable automatic network selection in environments where potential rogue base stations are a documented threat, and ensure devices are kept in updated, secure states.

Exploitation Status

Public Exploit Available: No — there is no confirmed public exploit available.

Analyst Notes: As of March 3, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires the target to connect to a specific, attacker-controlled base station, which limits the immediate attack surface but remains a significant concern for mobile security.

Analyst Recommendation

The severity of this vulnerability necessitates immediate attention, particularly for enterprise mobile fleets. Security teams should prioritize identifying devices using the affected MediaTek chipsets and verify that firmware updates are applied immediately upon release by the device OEM to mitigate the risk of remote privilege escalation.

Description Summary:
A missing bounds check in the MediaTek modem firmware allows for an out of bounds write, potentially leading to remote privilege escalation when connected to a rogue base station.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek chipsets could allow an attacker to achieve remote privilege escalation via a rogue base station connection.

Vulnerability Details

CVE-ID: CVE-2026-20433

Affected Software: MediaTek Chipset

Affected Versions: MT2735, MT2737, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853

Vulnerability: The flaw is an out of bounds write (CWE-787) occurring within the modem firmware. An unauthenticated attacker can trigger this vulnerability if a User Equipment device connects to a malicious base station under their control.

Business Impact

The potential for remote privilege escalation poses a significant risk to device integrity and user privacy. Successful exploitation could grant an attacker full control over the mobile device, leading to complete compromise of sensitive data and system functionality. Given the CVSS score of 8.8, this vulnerability is classified as High severity, necessitating prompt remediation to prevent unauthorized system access.

Remediation Plan

Immediate Action: Update the affected device firmware to the version containing the patch identified as MOLY01088681 by MediaTek.

Proactive Monitoring: Monitor device network logs for unusual base station handoff behavior or unexpected modem resets that may indicate exploitation attempts.

Compensating Controls: While direct mitigation is limited for mobile hardware, users should exercise caution when connecting to unknown or untrusted cellular networks in high-risk environments.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of April 8, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement to connect to a rogue base station makes this attack vector highly situational, but the impact of a successful breach remains severe.

Analyst Recommendation

Organizations and individual users relying on devices equipped with the specified MediaTek chipsets must prioritize the application of vendor-provided firmware updates. Due to the potential for remote escalation of privilege, failure to patch may leave devices vulnerable to sophisticated attackers operating rogue cellular infrastructure. Verify that all security patches are applied as soon as they are made available by the device manufacturer.

Description Summary:
A missing bounds check in MediaTek chipsets allows for an out-of-bounds write, potentially enabling remote privilege escalation when connected to a rogue base station.

Executive Summary:
A critical out-of-bounds write vulnerability in MediaTek chipsets could allow a remote attacker to escalate privileges if a user connects to a malicious base station.

Vulnerability Details

CVE-ID: CVE-2026-20432

Affected Software: MediaTek chipset

Affected Versions: MT2735, MT2737, MT6779, MT6781, MT6783, MT6785, MT6789, MT6813

Vulnerability: The flaw is an out-of-bounds write (CWE-787) occurring within the modem firmware. An unauthenticated attacker can trigger this condition by luring a target device to connect to a rogue base station, requiring user interaction to complete the malicious sequence.

Business Impact

The potential for remote privilege escalation poses a significant threat to mobile device integrity and data confidentiality. With a CVSS score of 8.0, this high-severity vulnerability highlights the risk of unauthorized system control, which could lead to complete compromise of the affected device and access to sensitive user information.

Remediation Plan

Immediate Action: Update the affected device firmware to the version containing Patch ID MOLY01406170 as provided by the device manufacturer or MediaTek.

Proactive Monitoring: Monitor device connectivity logs for unexpected base station handovers or unusual signal strength fluctuations which may indicate interaction with an unauthorized cell site.

Compensating Controls: Users should exercise caution when connecting to unknown or untrusted cellular networks and maintain updated device software to ensure security patches are applied.

Exploitation Status

Public Exploit Available: No — exploit_available (false).

Analyst Notes: As of April 8, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the flaw requires the device to connect to a rogue station, the inherent impact of an out-of-bounds write in modem firmware is severe and warrants prompt patching.

Analyst Recommendation

Given the high-severity nature of this privilege escalation flaw, organizations and individual users should prioritize the installation of security updates provided by their device vendors. Failure to apply the necessary firmware patches leaves devices vulnerable to compromise via malicious radio-based attacks.

Description Summary:
An out-of-bounds write vulnerability in MediaTek wlan AP firmware allows for unauthenticated remote escalation of privilege via adjacent network access.

Executive Summary:
A critical out-of-bounds write vulnerability in MediaTek wlan AP firmware enables unauthenticated attackers to achieve remote escalation of privilege on affected chipset hardware.

Vulnerability Details

CVE-ID: CVE-2026-20430

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT6890, MT7915, MT7916, MT7981, MT7986

Vulnerability: This flaw stems from an incorrect bounds check within the wireless access point firmware, identified as CWE-787 (Out-of-bounds Write). An unauthenticated attacker within proximity can trigger the vulnerability without user interaction to achieve escalation of privilege.

Business Impact

The vulnerability carries a CVSS score of 8.8, indicating high severity due to its potential for full system compromise. Successful exploitation allows unauthorized parties to gain elevated control over network infrastructure, leading to potential data interception, lateral movement within the corporate network, and significant operational disruption.

Remediation Plan

Immediate Action: Organizations should identify devices utilizing the affected MediaTek chipsets and apply the firmware update WCNCR00467553 provided by the vendor.

Proactive Monitoring: Network administrators should monitor for anomalous wireless traffic patterns or unexpected firmware crashes that may indicate exploitation attempts.

Compensating Controls: Restrict access to wireless management interfaces and implement strict network segmentation to limit the exposure of vulnerable access points to untrusted segments.

Exploitation Status

Public Exploit Available: No (unknown)

Analyst Notes: As of March 3, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the exploitability is high due to the lack of required authentication, the requirement for adjacent network access serves as a physical constraint for potential attackers.

Analyst Recommendation

Given the potential for remote escalation of privilege and the critical nature of the affected chipset firmware, this vulnerability requires immediate attention. Security teams must prioritize patching affected MediaTek devices to prevent unauthorized access to critical network infrastructure.

Description Summary:
A missing bounds check in the MediaTek wlan STA driver leads to an out of bounds write vulnerability, potentially allowing local privilege escalation.

Executive Summary:
A high-severity out of bounds write vulnerability in MediaTek wlan STA drivers enables local privilege escalation for authenticated users.

Vulnerability Details

CVE-ID: CVE-2026-20423

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT7902, MT7920, MT7921, MT7922, MT7925, MT7927

Vulnerability: The vulnerability exists due to a missing bounds check in the wlan STA driver, which allows an attacker with low-level user privileges to perform an out of bounds write. This flaw can be exploited by an authenticated local user to achieve privilege escalation without requiring further user interaction.

Business Impact

Successful exploitation of this vulnerability allows a local attacker to gain elevated privileges on the host system, potentially leading to full system compromise. Given the CVSS score of 7.1, this represents a significant risk to data confidentiality, integrity, and availability, particularly in environments where untrusted users may have local access to hardware-connected systems.

Remediation Plan

Immediate Action: Consult the MediaTek product security bulletin for March 2026 to identify and apply the specific firmware or driver updates corresponding to Patch ID WCNCR00465314.

Proactive Monitoring: Monitor system logs for unusual driver behavior, kernel crashes, or unexpected privilege escalation events that may indicate exploitation attempts.

Compensating Controls: Restrict local access to systems utilizing the affected MediaTek chipsets to authorized personnel only, and implement kernel-level protections to mitigate potential memory corruption exploits.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of March 3, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for local user privileges limits its attack surface to environments where an attacker has already established a foothold on the target device.

Analyst Recommendation

Organizations utilizing devices equipped with the affected MediaTek chipsets should prioritize the deployment of vendor-supplied patches as soon as they become available. Given the potential for local privilege escalation, securing the kernel environment and restricting user access remain critical secondary measures until the necessary firmware updates can be applied across the fleet.

Description Summary:
The Modem component is susceptible to a system crash caused by improper input validation. Exploitation results in a denial-of-service (DoS) state for the affected device.

Executive Summary:
The Modem firmware contains an improper input validation vulnerability that enables an attacker to induce a system-wide crash and disrupt all network communications.

Vulnerability Details

CVE-ID: CVE-2026-20422

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: Similar to related flaws in this component, this vulnerability involves a failure to properly sanitize input before it is processed by the modem's core logic. An attacker can trigger this flaw by sending specifically crafted packets or signals, leading to an unrecoverable system crash.

Business Impact

The business impact is significant as it compromises the availability of the device's primary communication channel. The CVSS score of 7.5 reflects a High severity, highlighting the risk of widespread service outages and the potential for attackers to target critical infrastructure reliant on modem connectivity.

Remediation Plan

Immediate Action: Deploy the vendor-supplied security patches to all affected systems immediately to resolve the underlying input validation error.

Proactive Monitoring: Implement automated alerts for modem-related failures and investigate any spike in "modem silent" or "subsystem restart" events in system logs.

Compensating Controls: Where patching is delayed, isolate sensitive devices from public networks and implement strict traffic filtering to reduce the attack surface.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. The risk remains high given that modem vulnerabilities often affect large fleets of mobile or embedded devices simultaneously.

Analyst Recommendation

This vulnerability represents a significant threat to system uptime and reliability. Administrators must treat this as a high-priority update and ensure that the primary remediation—the vendor firmware patch—is applied across the enterprise environment without delay.

Description Summary:
A vulnerability in the Modem component allows for a system crash due to improper input validation. An attacker could exploit this flaw to cause a denial-of-service (DoS) condition.

Executive Summary:
A critical input validation flaw in the Modem firmware could allow an attacker to trigger a complete system crash, resulting in a persistent denial-of-service condition.

Vulnerability Details

CVE-ID: CVE-2026-20421

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability exists due to improper input validation within the Modem's processing logic. An attacker, potentially unauthenticated depending on the interface exposure, can submit malformed data that the system fails to handle correctly, leading to a kernel panic or system crash.

Business Impact

A successful exploit of this vulnerability directly impacts business continuity by disabling mobile connectivity and device stability. With a CVSS score of 7.5, the severity is classified as High because it allows for a remote or local denial-of-service, which can disrupt critical communications and lead to significant operational downtime for affected hardware.

Remediation Plan

Immediate Action: Apply the latest firmware security updates provided by the modem or device manufacturer immediately to patch the input validation logic.

Proactive Monitoring: Security teams should monitor device logs for unexpected reboots or modem subsystem crashes which may indicate exploitation attempts.

Compensating Controls: Ensure that devices are not exposed to untrusted networks and utilize network-level filtering to restrict access to diagnostic interfaces where possible.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, due to the nature of the flaw in a core communication component, the potential for exploitation is high once technical details are reverse-engineered.

Analyst Recommendation

The high CVSS score of 7.5 underscores the risk this vulnerability poses to device availability. It is highly recommended that organizations prioritize the deployment of manufacturer-provided patches across all affected mobile or IoT assets to prevent service disruptions.

Description Summary:
Incorrect error handling in modem firmware can lead to a possible system crash and denial of service.

Executive Summary:
A High-severity error handling vulnerability in modem firmware could allow an attacker to crash the device and terminate network services.

Vulnerability Details

CVE-ID: CVE-2026-20420

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability is caused by incorrect error handling within the modem's firmware. When certain error conditions occur, the system fails to recover gracefully, resulting in a system crash. This condition can likely be induced by an unauthenticated attacker.

Business Impact

A successful exploit results in a Denial of Service (DoS), rendering the modem unusable until it is reset. The CVSS score of 7.5 reflects the critical nature of this flaw for network availability, as it could be used to systematically disable communication links across an enterprise.

Remediation Plan

Immediate Action: Apply the vendor's security patches immediately to correct the error handling logic in the modem firmware.

Proactive Monitoring: Monitor for repeated device failures and analyze crash dumps if available to identify the specific triggers for the error handling failure.

Compensating Controls: Deploy network-based anomaly detection to identify and block traffic patterns that precede modem crashes.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, error handling flaws are common targets for attackers looking for reliable ways to disrupt service.

Analyst Recommendation

Immediate patching is highly recommended to maintain the availability of network services. Administrators should ensure that all modem devices are included in a regular patch management cycle to mitigate the risk of service disruption from such High-severity vulnerabilities.

Description Summary:
An uncaught exception in WLAN AP/STA firmware can cause the system to become irresponsive, leading to a denial of service.

Executive Summary:
WLAN Access Point and Station firmware are vulnerable to an uncaught exception that can cause the system to stop responding, disrupting wireless connectivity.

Vulnerability Details

CVE-ID: CVE-2026-20419

Affected Software: WLAN AP/STA Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The WLAN firmware (Access Point/Station) contains an uncaught exception vulnerability. An unauthenticated attacker could potentially trigger this exception through malicious wireless frames or network traffic, causing the device to enter an unresponsive state.

Business Impact

The vulnerability leads to a loss of wireless connectivity for all clients associated with the affected Access Point. With a CVSS score of 7.5, this poses a significant risk to organizational productivity and the reliability of the wireless local area network (WLAN).

Remediation Plan

Immediate Action: Update the AP and STA firmware to the latest versions provided by the hardware manufacturer to resolve the exception handling flaw.

Proactive Monitoring: Use wireless network management tools to monitor AP responsiveness and investigate any devices that stop responding to pings or management queries.

Compensating Controls: Implement strong WPA3 encryption and management frame protection (MFP) to reduce the ability of unauthorized devices to interact with the firmware's management logic.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. DoS vulnerabilities in wireless firmware are particularly impactful in high-density environments like offices or hospitals.

Analyst Recommendation

Organizations should prioritize the update of wireless infrastructure firmware. Given the High-severity rating, failing to patch could lead to widespread wireless outages that are difficult to diagnose without physical access to the hardware.

Description Summary:
A missing bounds check in the Thread protocol implementation leads to an out-of-bounds write, potentially allowing for arbitrary code execution.

Executive Summary:
The Thread protocol implementation is vulnerable to an out-of-bounds write that could allow an attacker to execute arbitrary code or cause a system crash.

Vulnerability Details

CVE-ID: CVE-2026-20418

Affected Software: Thread Thread Protocol Implementation

Affected Versions: See vendor advisory for affected versions

Vulnerability: This vulnerability is caused by a missing bounds check when processing network packets or data within the Thread stack. This leads to an out-of-bounds write, which can be triggered by a local or adjacent attacker depending on the specific implementation of the Thread network.

Business Impact

The CVSS score of 8.8 reflects the critical nature of this flaw, especially for IoT environments where Thread is commonly used. A successful exploit could lead to full device compromise, allowing an attacker to join the mesh network, intercept traffic, or pivot to other connected devices. This poses a significant risk to data privacy and the operational stability of smart infrastructure.

Remediation Plan

Immediate Action: Update all IoT devices and gateways using the Thread protocol to the latest firmware version that includes the patch for this bounds check flaw.

Proactive Monitoring: Monitor IoT network traffic for malformed Thread packets or unexpected device reboots that could signify exploitation attempts.

Compensating Controls: Implement network segmentation to isolate IoT devices from critical corporate assets and use network-level intrusion detection systems.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. Out-of-bounds writes in networking stacks are high-risk vulnerabilities that often lead to reliable exploits.

Analyst Recommendation

Given the proliferation of Thread-enabled devices, this vulnerability should be treated with high urgency. Security administrators must coordinate with device vendors to ensure all firmware is up to date. Prioritizing this update is essential to maintaining the security of the IoT ecosystem.

Description Summary:
A missing bounds check in the PCIe implementation of MediaTek chipsets allows for an out of bounds write, potentially leading to local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek chipsets could allow an attacker with system-level access to escalate privileges.

Vulnerability Details

CVE-ID: CVE-2026-20416

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT6991, MT6993, MT8188, MT8678

Vulnerability: This vulnerability is an out of bounds write (CWE-787) occurring within the PCIe driver component. It requires an attacker to already possess system-level privileges to trigger the flaw, which then facilitates further escalation of privilege without user interaction.

Business Impact

The potential for local privilege escalation poses a significant risk to device integrity and security. While the exploit requires prior system-level access, the resulting escalation could allow an attacker to bypass remaining security controls, potentially leading to unauthorized data access or total control over the affected device. The CVSS score of 7.2 reflects the high impact on confidentiality, integrity, and availability within the local environment.

Remediation Plan

Immediate Action: Apply the specific security updates provided by the device manufacturer or vendor, specifically referencing Patch IDs ALPS10315038 or ALPS10340155.

Proactive Monitoring: Monitor system logs for unusual PCIe driver behavior or unauthorized attempts to modify protected system memory regions.

Compensating Controls: Ensure that overall system hardening policies are enforced to restrict initial access to the system, as this vulnerability is dependent on an attacker already having obtained system-level privileges.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of March 3, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for pre-existing system-level access significantly limits the attack surface for remote threats.

Analyst Recommendation

Given the potential for privilege escalation, organizations using devices with the affected MediaTek chipsets should prioritize the deployment of vendor-supplied firmware updates. Verify patch application by checking for the inclusion of the referenced MediaTek Issue ID MSV-5155 to ensure the vulnerability is effectively mitigated.

Description Summary:
The MediaTek cameraisp component contains an out-of-bounds write vulnerability caused by a missing bounds check, posing a risk of memory corruption.

Executive Summary:
A critical flaw in the MediaTek cameraisp driver could allow a local attacker to execute an out-of-bounds write, leading to system instability or unauthorized privilege escalation.

Vulnerability Details

CVE-ID: CVE-2026-20412

Affected Software: MediaTek cameraisp

Affected Versions: See vendor advisory for affected versions

Vulnerability: This vulnerability occurs in the "cameraisp" (Image Signal Processor) component due to a missing bounds check. An attacker with the ability to interface with the camera driver can trigger an out-of-bounds write, allowing for the corruption of memory in a high-privilege kernel or driver environment.

Business Impact

Successful exploitation of this High-severity (CVSS 7.8) vulnerability could allow an attacker to gain unauthorized access to the device's camera feed or escalate their privileges to take full control of the operating system. This poses a direct threat to user privacy and corporate data security, as it bypasses standard operating system permissions and security boundaries.

Remediation Plan

Immediate Action: Apply the latest system updates and security patches provided by the device vendor or MediaTek immediately.

Proactive Monitoring: Monitor for unexpected system crashes or reboots, which can be indicators of failed memory corruption exploit attempts.

Compensating Controls: Restrict camera permissions for non-essential applications and use enterprise mobility management (EMM) to enforce the latest security policy baselines.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, ISP-related vulnerabilities are a common vector for advanced persistent threats targeting mobile hardware.

Analyst Recommendation

The severity of an out-of-bounds write in a hardware driver cannot be overstated. We recommend that security teams expedite the testing and deployment of the latest vendor firmware. Immediate patching is necessary to prevent local attackers or malicious apps from compromising the device's security architecture.

Description Summary:
A use-after-free vulnerability in the cameraisp component allows for potential local escalation of privilege by exploiting memory corruption within the driver.

Executive Summary:
The cameraisp component contains a use-after-free vulnerability that could allow a local attacker to escalate their system privileges.

Vulnerability Details

CVE-ID: CVE-2026-20411

Affected Software: cameraisp cameraisp component

Affected Versions: See vendor advisory for affected versions

Vulnerability: This vulnerability is a use-after-free flaw within the cameraisp driver logic. It enables a local attacker, typically requiring basic authenticated access to the device, to trigger memory corruption that can lead to an escalation of privilege (EoP).

Business Impact

A successful exploit of this vulnerability could grant an attacker elevated permissions, potentially allowing them to bypass security controls, access sensitive system data, or maintain persistence on the device. Given the CVSS score of 7.8, this is classified as High severity because it directly undermines the integrity of the system's permission model. Unauthorized privilege escalation often serves as a primary step for more complex multi-stage attacks.

Remediation Plan

Immediate Action: Administrators and device manufacturers should apply the latest kernel or driver security patches provided by the vendor immediately.

Proactive Monitoring: Security teams should monitor system logs for unusual driver crashes or unexpected kernel-level activity that may indicate exploitation attempts.

Compensating Controls: Restrict access to the device to trusted users and implement strict application sandboxing to limit the impact of a compromised local account.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, due to the nature of use-after-free flaws in kernel-mode components, the potential for developing a stable exploit is high.

Analyst Recommendation

The high severity and potential for total system compromise via privilege escalation make this a priority for remediation. Organizations should prioritize the deployment of vendor-supplied updates across all affected hardware. Immediate patching is the only definitive way to mitigate the risk of local privilege escalation.

Description Summary:
A missing bounds check in the MediaTek imgsys component allows for a possible out-of-bounds write, potentially leading to local privilege escalation.

Executive Summary:
The MediaTek imgsys component is vulnerable to an out-of-bounds write that could allow a local attacker to compromise system memory and escalate privileges.

Vulnerability Details

CVE-ID: CVE-2026-20409

Affected Software: MediaTek imgsys

Affected Versions: See vendor advisory for affected versions

Vulnerability: In the "imgsys" (imaging system) component, a missing bounds check on input data leads to an out-of-bounds write vulnerability. This flaw typically requires some level of local execution capability but allows an attacker to overwrite critical memory regions, potentially leading to arbitrary code execution within a privileged context.

Business Impact

The ability to perform an out-of-bounds write in a core hardware abstraction layer like "imgsys" is a critical security concern. With a CVSS score of 7.8, this High-severity vulnerability could be leveraged by malicious applications to bypass security sandboxes, steal sensitive user data, or gain persistent control over the device. For enterprises, this represents a significant risk to mobile device integrity and data privacy.

Remediation Plan

Immediate Action: Deploy the latest firmware and security updates from the device manufacturer (OEM) to address the underlying MediaTek driver flaw.

Proactive Monitoring: Utilize Mobile Threat Defense (MTD) solutions to detect suspicious application behavior or attempts to exploit kernel-level vulnerabilities.

Compensating Controls: Enforce strict application whitelisting and ensure that devices are not "rooted," as this significantly increases the ease of exploiting out-of-bounds write vulnerabilities.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. Vulnerabilities in imaging components are frequently targeted in "zero-click" or highly sophisticated exploit chains.

Analyst Recommendation

This vulnerability requires immediate attention due to its potential for privilege escalation. Organizations should prioritize the distribution of the latest Android security patches to all affected devices. Ensuring that hardware-level drivers are patched is essential for maintaining the overall security posture of the mobile fleet.

Description Summary:
A heap buffer overflow in the WLAN driver component allows for an out-of-bounds write, potentially leading to system memory corruption or arbitrary code execution.

Executive Summary:
A high-severity heap buffer overflow vulnerability in the WLAN component could allow an attacker to perform an out-of-bounds write, leading to system instability or unauthorized code execution.

Vulnerability Details

CVE-ID: CVE-2026-20408

Affected Software: Android/Chipset Vendor WLAN Driver/Component

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability is characterized by a heap buffer overflow within the WLAN stack, which facilitates an out-of-bounds write. This flaw typically occurs during the processing of wireless network frames and may be reachable by an unauthenticated attacker located within the radio range of the target device.

Business Impact

A successful exploit of this vulnerability could lead to a complete denial-of-service (system crash) or the execution of arbitrary code with kernel-level privileges. With a CVSS score of 8.0, this represents a high-risk scenario where the integrity and availability of the device are significantly compromised, potentially leading to full system takeover and the theft of sensitive data.

Remediation Plan

Immediate Action: Organizations and users must apply the latest security patches provided by the hardware manufacturer or OS vendor immediately to rectify the memory management flaw.

Proactive Monitoring: Security administrators should review system logs for frequent kernel panics or anomalous driver behavior that could indicate exploitation attempts or failed memory corruption attacks.

Compensating Controls: Where immediate patching is not feasible, restrict device connectivity to known, secure wireless networks and utilize mobile device management (MDM) policies to isolate high-risk assets from untrusted environments.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, due to the nature of heap-based overflows in critical network drivers, the potential for sophisticated exploitation remains high.

Analyst Recommendation

The severity of this vulnerability necessitates immediate attention, as flaws in low-level drivers like WLAN often bypass standard application-layer security controls. It is highly recommended that IT administrators prioritize the deployment of vendor-supplied firmware or OS updates across all affected devices to eliminate the risk of remote code execution.

Description Summary:
A missing bounds check in the wlan STA driver allows for local escalation of privilege through a potential buffer overflow or memory corruption.

Executive Summary:
A missing bounds check in the wlan STA driver could allow a local attacker to achieve elevated system privileges on affected devices.

Vulnerability Details

CVE-ID: CVE-2026-20407

Affected Software: wlan STA driver

Affected Versions: See vendor advisory for affected versions

Vulnerability: This vulnerability stems from a lack of proper bounds checking within the wlan STA driver code. A local attacker can exploit this deficiency to cause memory corruption, facilitating an escalation of privilege from a standard user to a higher-level system or root account.

Business Impact

With a CVSS score of 8.8, this vulnerability is considered High severity. Successful exploitation allows an attacker to gain deep access to the operating system, potentially leading to the installation of persistent malware, theft of sensitive data, or complete system takeover. In an enterprise environment, this could compromise the security of mobile workstations and IoT devices.

Remediation Plan

Immediate Action: Apply the specific security updates provided by the hardware or OS vendor to fix the driver's bounds checking logic.

Proactive Monitoring: Review system crash reports and kernel logs for signatures related to wlan driver instability, which may indicate exploit attempts.

Compensating Controls: Use endpoint detection and response (EDR) tools to monitor for suspicious privilege escalation behavior and restrict the loading of unauthorized drivers.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. Driver-level vulnerabilities are highly valuable to attackers seeking to bypass OS-level security features.

Analyst Recommendation

The severity of this flaw necessitates immediate attention. Organizations should identify all devices utilizing the affected wlan STA driver and deploy the necessary patches. Failure to remediate this vulnerability leaves the system open to sophisticated local attacks that can bypass standard security boundaries.

Description Summary:
An uncaught exception in modem firmware can lead to a system crash, resulting in a denial of service.

Executive Summary:
Modem firmware contains an uncaught exception vulnerability that can be exploited to cause a system crash and disrupt all network traffic.

Vulnerability Details

CVE-ID: CVE-2026-20406

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability involves an uncaught exception within the modem's firmware. When the firmware encounters an unexpected error condition that is not properly handled, the system terminates the process or crashes entirely. This can likely be triggered by an unauthenticated remote attacker.

Business Impact

The impact is a complete Denial of Service (DoS) for the affected modem. The CVSS score of 7.5 indicates a High-severity risk to availability, which is critical for maintaining reliable network infrastructure and avoiding business downtime.

Remediation Plan

Immediate Action: Apply the latest firmware updates from the vendor to ensure that all exceptions are properly caught and handled by the system.

Proactive Monitoring: Monitor device logs for unhandled exception errors and track frequency of service restarts.

Compensating Controls: Isolate the modem's control plane from the data plane where possible and restrict management access to secure, authenticated channels.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. Uncaught exceptions are often the result of edge cases in protocol handling that can be discovered through targeted testing.

Analyst Recommendation

We recommend the immediate application of firmware patches. Ensuring the stability of the modem's operating environment is vital for preventing intentional or accidental service outages.

Description Summary:
Modem firmware is susceptible to a system crash due to a missing bounds check, which can be triggered by malformed input.

Executive Summary:
A missing bounds check in modem firmware allows for a system crash, creating a significant Denial of Service risk for the affected hardware.

Vulnerability Details

CVE-ID: CVE-2026-20405

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability stems from a missing bounds check within the modem's firmware components. By sending crafted data that exceeds expected limits, an unauthenticated attacker can trigger a crash of the modem's operating system.

Business Impact

The resulting system crash leads to a total loss of network availability for the affected device. The CVSS score of 7.5 reflects the high impact on business continuity, as communication failures can prevent access to cloud services, remote offices, and customer-facing applications.

Remediation Plan

Immediate Action: Deploy the manufacturer's firmware update that specifically addresses the missing bounds check vulnerability.

Proactive Monitoring: Implement automated alerts for device downtime to ensure rapid response if a DoS attack occurs.

Compensating Controls: Use intrusion prevention systems (IPS) to detect and drop packets that exhibit characteristics of buffer overflow or bounds-violation attempts.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, bounds-check failures are a classic vulnerability type that is easily discovered by fuzzing tools.

Analyst Recommendation

Immediate patching is the only effective mitigation. IT administrators should verify the firmware versions of all deployed modems and update any that are running vulnerable software to prevent service interruptions.

Description Summary:
Improper input validation in modem firmware allows for a possible system crash, leading to a denial of service condition.

Executive Summary:
A High-severity input validation vulnerability in modem firmware could be exploited to crash the system and disrupt network connectivity.

Vulnerability Details

CVE-ID: CVE-2026-20404

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The firmware fails to properly validate input data, which can lead to an unstable state and an eventual system crash. This vulnerability is likely accessible to unauthenticated attackers who can send malformed data to the device.

Business Impact

An exploit would cause a complete loss of availability for the affected modem. With a CVSS score of 7.5, the impact is significant for organizations that depend on continuous connectivity, as a crash can halt data transfers and interrupt business-critical services.

Remediation Plan

Immediate Action: Update the modem firmware to the most recent version provided by the vendor to fix the input validation routine.

Proactive Monitoring: Review system logs for error messages related to input processing and monitor for patterns of frequent device resets.

Compensating Controls: Place modem management interfaces behind a firewall and limit access to authorized IP addresses to minimize exposure to external attackers.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. The risk remains high as DoS attacks are often used as a precursor to more complex network intrusions.

Analyst Recommendation

Apply the vendor's security update immediately. Maintaining up-to-date firmware is a critical component of a defense-in-depth strategy, particularly for hardware that serves as a gateway to the network.

Description Summary:
A missing bounds check in modem firmware creates a vulnerability that can result in a system crash and denial of service.

Executive Summary:
Modem firmware is vulnerable to a system crash due to a missing bounds check, posing a high risk of service disruption.

Vulnerability Details

CVE-ID: CVE-2026-20403

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: This vulnerability is caused by a missing bounds check in the modem firmware's memory management or packet processing logic. An attacker could potentially trigger this flaw without authentication, leading to a system crash.

Business Impact

The primary impact is a Denial of Service (DoS), as the system crash forces the modem to become inoperative until it is manually or automatically rebooted. The CVSS score of 7.5 highlights the severity of this availability risk, which can lead to significant downtime for critical communication links.

Remediation Plan

Immediate Action: Install the latest firmware patch from the manufacturer that implements the necessary bounds checking.

Proactive Monitoring: Use network monitoring tools to track device uptime and investigate any sudden, unexplained reboots of modem hardware.

Compensating Controls: Implement network-level filtering to block malformed packets that might be used to trigger memory-related vulnerabilities in edge devices.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. Missing bounds checks are common targets for researchers and threat actors seeking to find stable DoS vectors.

Analyst Recommendation

Administrators should immediately apply the vendor's firmware updates. Ensuring that all networking hardware is running current, patched firmware is essential for protecting against DoS attacks that target basic protocol handling.

Description Summary:
A modem firmware vulnerability involving improper input validation can lead to a possible system crash and denial of service.

Executive Summary:
A critical input validation flaw in certain modem firmware could allow an attacker to cause a total system crash, resulting in a denial of service.

Vulnerability Details

CVE-ID: CVE-2026-20402

Affected Software: Modem Firmware

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The modem firmware suffers from an improper input validation vulnerability. An attacker, likely unauthenticated via the network, can provide specially crafted input that the system fails to handle correctly, leading to a system crash.

Business Impact

A successful exploit results in a complete system crash, causing a Denial of Service (DoS) for all connected users and services. With a CVSS score of 7.5, this vulnerability represents a high risk to availability, potentially disrupting critical communications and business operations that rely on the affected modem hardware.

Remediation Plan

Immediate Action: Apply the firmware update provided by the modem manufacturer immediately to resolve the input validation logic error.

Proactive Monitoring: Monitor network infrastructure for unexpected device reboots or connectivity drops that could indicate exploitation attempts.

Compensating Controls: Restrict access to the modem's management interfaces to trusted internal networks only, reducing the attack surface available to external threats.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of February 3, 2026, there is no public information indicating active exploitation of this vulnerability. However, DoS vulnerabilities in networking hardware are frequently targeted to disrupt infrastructure.

Analyst Recommendation

The primary recommendation is to update the modem firmware to the latest secure version. Given the High severity (CVSS 7.5), administrators should prioritize these updates to maintain the stability and availability of their network communications.

Description Summary:
A race condition in the MediaTek seninf component leads to memory corruption, potentially allowing local privilege escalation for attackers who have already obtained system-level access.

Executive Summary:
A memory corruption vulnerability in multiple MediaTek chipsets could allow an attacker with system-level access to escalate privileges, posing a significant risk to device integrity.

Vulnerability Details

CVE-ID: CVE-2025-20801

Affected Software: MediaTek Chipsets

Affected Versions: MT6878, MT6897, MT6899, MT6985, MT6989, MT6991, MT6993, MT8792

Vulnerability: The vulnerability is a race condition (CWE-415, Double Free) within the seninf component. It requires an attacker to already possess system-level privileges to exploit, at which point they can achieve local escalation of privilege without user interaction.

Business Impact

The CVSS score of 7.0 reflects a high severity rating due to the potential for total compromise of confidentiality, integrity, and availability once the initial privilege threshold is met. For organizations, this vulnerability could facilitate the bypass of device security boundaries, potentially leading to unauthorized data exfiltration or persistent malware installation on affected hardware.

Remediation Plan

Immediate Action: Apply the vendor-provided security update (Patch ID: ALPS10251210) as specified in the MediaTek January 2026 product security bulletin.

Proactive Monitoring: Monitor system logs for unusual crashes or process restarts related to the seninf component, which may indicate attempted exploitation.

Compensating Controls: Since this is a hardware-level vulnerability requiring system privileges, ensure that device hardening policies are strictly enforced to minimize the surface area for initial compromise that would grant the necessary system access.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the flaw requires an existing system-level foothold, the complexity of memory corruption race conditions suggests that exploitation remains a specialized task.

Analyst Recommendation

Given the severity of the potential impact, IT administrators and device manufacturers should prioritize the deployment of Patch ID ALPS10251210 across all affected hardware. Organizations should verify that their supply chain partners have integrated this update to ensure that devices remain protected against potential privilege escalation attacks.

Description Summary:
A missing bounds check in the mminfra component of various MediaTek chipsets allows for an out of bounds write, potentially leading to local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek chipsets enables local privilege escalation for attackers who have already obtained system-level access.

Vulnerability Details

CVE-ID: CVE-2025-20800

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT2718, MT6899, MT6989, MT6991, MT8678, MT8793

Vulnerability: The flaw is an out of bounds write (CWE-787) within the mminfra component. Exploitation requires an attacker to already possess system privileges, at which point they can escalate their standing without user interaction.

Business Impact

This vulnerability carries a CVSS score of 7.8, reflecting a high-severity risk to system integrity and confidentiality. While the prerequisite of existing system access limits the scope, successful exploitation allows an attacker to bypass remaining security controls, potentially leading to total system compromise and unauthorized data access.

Remediation Plan

Immediate Action: Apply the vendor-provided security update associated with Patch ID ALPS10267349 as detailed in the January 2026 MediaTek security bulletin.

Proactive Monitoring: Monitor system logs for unusual behavior or unauthorized attempts to access restricted memory regions or system-level processes.

Compensating Controls: Ensure that system-level access is strictly controlled and that least-privilege principles are enforced to prevent attackers from reaching the state required to trigger this vulnerability.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement for prior system-level privileges makes this an escalation vector rather than an entry vector.

Analyst Recommendation

Given the high impact on system security, administrators must prioritize the application of the official MediaTek patch. Organizations using affected hardware should verify their current firmware versions against the January 2026 security bulletin and ensure that vendor-supplied updates are deployed across all managed devices to effectively mitigate this escalation risk.

Description Summary:
A memory corruption vulnerability exists in MediaTek chipsets due to a use after free error, which may allow for local escalation of privilege.

Executive Summary:
A memory corruption vulnerability in MediaTek chipsets (MT6899, MT6991, MT6993, MT8793) poses a risk of local privilege escalation for attackers who have already obtained system-level access.

Vulnerability Details

CVE-ID: CVE-2025-20799

Affected Software: MediaTek Chipset

Affected Versions: MediaTek chipset: MT6899, MT6991, MT6993, MT8793

Vulnerability: The vulnerability is a use after free flaw (CWE-416) that triggers memory corruption. An attacker requires local access and existing system-level privileges to exploit this issue, though no user interaction is required.

Business Impact

The potential for local privilege escalation represents a significant security risk, as it allows an attacker who has gained initial access to elevate their permissions to a higher level of authority. With a CVSS score of 7.8, this vulnerability is classified as High severity, necessitating prompt attention to prevent unauthorized control over the affected hardware. Failure to remediate could lead to full system compromise, data theft, or persistent unauthorized access within the local environment.

Remediation Plan

Immediate Action: Apply the vendor security update identified by Patch ID ALPS10274607 as provided in the January 2026 MediaTek product security bulletin.

Proactive Monitoring: Monitor system logs for unusual process activity or signs of unexpected crashes that may indicate attempted memory corruption or privilege escalation attempts.

Compensating Controls: Ensure that strict access control policies are enforced on the local device, limiting the number of users or services that possess system-level privileges.

Exploitation Status

Public Exploit Available: No (unknown)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to the potential for privilege escalation, but it is constrained by the requirement that the attacker must already possess system-level access to the device.

Analyst Recommendation

Given the severity of this vulnerability, administrators should prioritize the application of the official MediaTek patch. While the requirement for existing system privileges limits the initial attack surface, the potential for total system impact makes this a high-priority remediation. Organizations using the specified MediaTek chipset models should verify their firmware versions against the January 2026 security bulletin and deploy the update immediately to mitigate the risk of escalation.

Description Summary:
A missing bounds check in the MediaTek battery driver allows for an out of bounds write, potentially leading to local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in various MediaTek chipsets could allow a malicious actor with system level access to escalate privileges.

Vulnerability Details

CVE-ID: CVE-2025-20798

Affected Software: MediaTek chipset (MT2718, MT6765, MT6768, MT6781, MT6833, MT6835, MT6853, MT6855)

Affected Versions: MT2718, MT6765, MT6768, MT6781, MT6833, MT6835, MT6853, MT6855

Vulnerability: The flaw is an out of bounds write (CWE-787) occurring within the battery component. Exploitation requires an attacker to already possess system level privileges, at which point they can trigger the vulnerability without user interaction.

Business Impact

The vulnerability carries a CVSS score of 7.8, reflecting a high severity risk due to the potential for total system compromise. If exploited, an attacker who has already breached the initial system layer can escalate their privileges, leading to unauthorized data access, complete control over device functionality, or sustained malicious persistence.

Remediation Plan

Immediate Action: Organizations using affected MediaTek chipsets must apply the vendor provided security updates, specifically referencing Patch ID ALPS10315812.

Proactive Monitoring: Security teams should monitor system logs for unusual crashes or instability in battery management processes which may indicate attempted exploitation.

Compensating Controls: Ensure that device security policies restrict access to system level functions, as the vulnerability requires existing system privilege to execute.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof of concept for this vulnerability. While the exploitability is limited by the requirement for prior system level access, the resulting impact remains severe.

Analyst Recommendation

Given the high CVSS score and the potential for privilege escalation, administrators must prioritize the deployment of the provided security patch. Ensure that all firmware updates are obtained directly from the device manufacturer or MediaTek to mitigate the risk of unauthorized privilege escalation.

Description Summary:
A missing bounds check in the MediaTek battery driver leads to an out of bounds write, which can result in local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek chipsets allows a local attacker with system privileges to escalate their authority further, posing a significant risk to device integrity.

Vulnerability Details

CVE-ID: CVE-2025-20797

Affected Software: MediaTek Chipset

Affected Versions: MT2718, MT6765, MT6768, MT6781, MT6833, MT6835, MT6853, MT6855

Vulnerability: The flaw is a stack-based buffer overflow (CWE-121) caused by a missing bounds check within the battery component. An attacker who has already obtained system-level access can leverage this vulnerability to gain further privileges without requiring user interaction.

Business Impact

The potential for local privilege escalation represents a severe security risk, as it allows a compromised system to be fully controlled or manipulated by an attacker. Given the CVSS score of 7.8, this vulnerability is classified as High severity because it facilitates a complete compromise of system security controls, potentially leading to unauthorized data access or persistent malware installation.

Remediation Plan

Immediate Action: Apply the specific security update provided by the device manufacturer or MediaTek using Patch ID ALPS10315812.

Proactive Monitoring: Monitor system logs for unexpected crashes or unauthorized attempts to access low-level hardware drivers.

Compensating Controls: Ensure that device security policies restrict unauthorized local access and maintain up-to-date kernel integrity protections to prevent the initial system-level compromise.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires the attacker to possess system privileges beforehand, the impact of a successful exploit is significant, necessitating timely patching.

Analyst Recommendation

Organizations utilizing devices equipped with the affected MediaTek chipsets must prioritize the deployment of the provided vendor patch. Although the exploit requires pre-existing system-level access, the ability to escalate privileges makes this a critical maintenance item for device security. Please verify the patch availability through your specific hardware vendor's security bulletin.

Description Summary:
A local out of bounds write vulnerability exists in the MediaTek imgsys component, potentially allowing for privilege escalation when combined with existing system-level access.

Executive Summary:
A high-severity out of bounds write vulnerability in MediaTek chipsets could allow an attacker with system-level access to achieve local privilege escalation.

Vulnerability Details

CVE-ID: CVE-2025-20796

Affected Software: MediaTek chipset (MT6989, MT8796, MT8893)

Affected Versions: MediaTek, Inc. MediaTek chipset: MT6989, MT8796, MT8893

Vulnerability: The vulnerability is an out of bounds write (CWE-1285) in the imgsys component caused by improper input validation. While the vulnerability requires the attacker to have already obtained system-level privileges, successful exploitation results in local escalation of privilege.

Business Impact

The potential for local privilege escalation poses a significant risk to device integrity and confidentiality. With a CVSS score of 7.8, this flaw is categorized as High, as it enables an attacker who has already gained a foothold to bypass remaining security boundaries and gain full control over the affected hardware.

Remediation Plan

Immediate Action: Review the official MediaTek product security bulletin for January 2026 and apply the recommended firmware update (Patch ID: ALPS10314745) as soon as it is made available by the device manufacturer.

Proactive Monitoring: Monitor system logs for unusual behavior in the imgsys process or unauthorized attempts to escalate privileges within the operating system environment.

Compensating Controls: Ensure that strict access controls are enforced at the OS level to prevent unauthorized users from obtaining the initial system-level privileges required to trigger this vulnerability.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement for prior system-level access significantly limits the attack surface for this flaw.

Analyst Recommendation

Given the High severity of this vulnerability, administrators should prioritize the deployment of firmware updates provided by the device manufacturer. Although the vulnerability requires elevated privileges to initiate, the potential for total system compromise necessitates prompt attention to vendor security guidance.

Description Summary:
A missing bounds check in the MediaTek KeyInstall component allows for an out of bounds write, potentially leading to local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek chipsets enables local attackers with existing system-level access to escalate their privileges.

Vulnerability Details

CVE-ID: CVE-2025-20795

Affected Software: MediaTek Chipset

Affected Versions: MT2718, MT6580, MT6739, MT6761, MT6765, MT6768, MT6779, MT6781

Vulnerability: The flaw is an out of bounds write (CWE-787) within the KeyInstall function. Exploitation requires the attacker to have already obtained System level privileges, at which point they can trigger the vulnerability without user interaction.

Business Impact

Successful exploitation of this vulnerability allows a malicious actor to gain elevated system permissions, potentially leading to total compromise of the affected device. Given the CVSS score of 7.8, this poses a significant risk to data integrity and system availability, particularly in mobile or embedded environments where unauthorized privilege escalation facilitates deeper persistent access.

Remediation Plan

Immediate Action: Apply the vendor-provided security update identified by Patch ID ALPS10276761 as listed in the January 2026 MediaTek security bulletin.

Proactive Monitoring: Monitor system logs for unusual crash patterns or unexpected behavior in the KeyInstall process that may indicate failed exploitation attempts.

Compensating Controls: Ensure that existing security policies restrict low-privileged access to the system, as the exploit requires an initial foothold with system-level permissions to succeed.

Exploitation Status

Public Exploit Available: No — there is no confirmed public exploit in the available data.

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires a pre-existing level of privilege to execute, the nature of memory corruption flaws in chipset firmware makes them high-value targets for advanced persistent threats.

Analyst Recommendation

This vulnerability highlights the importance of maintaining up-to-date firmware on all MediaTek-based hardware. Administrators should prioritize the deployment of the January 2026 security patch to mitigate the risk of local privilege escalation and ensure that system-level access remains protected from secondary exploitation vectors.

Description Summary:
A stack overflow vulnerability in the MediaTek modem firmware allows an unauthenticated attacker to trigger a remote system crash via a rogue base station.

Executive Summary:
A critical stack overflow vulnerability in MediaTek chipsets enables unauthenticated remote denial of service attacks without user interaction.

Vulnerability Details

CVE-ID: CVE-2025-20794

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT2735, MT2737, MT6813, MT6815, MT6833, MT6835, MT6853, MT6855

Vulnerability: The flaw is a stack overflow (CWE-121) caused by improper input validation within the modem firmware. An unauthenticated attacker can exploit this by connecting a user equipment device to a rogue base station, resulting in a system crash.

Business Impact

The potential for remote denial of service poses a significant risk to operational continuity, particularly for mobile devices relying on these chipsets. With a CVSS score of 7.5, this high severity vulnerability could lead to widespread service disruption, impacting communication capabilities and rendering devices unresponsive.

Remediation Plan

Immediate Action: Apply the vendor security updates containing Patch IDs MOLY01689259 or MOLY01586470 as provided in the MediaTek product security bulletin.

Proactive Monitoring: Monitor device logs for unusual modem behavior or unexpected reboots that may indicate exploitation attempts.

Compensating Controls: While standard WAFs cannot mitigate radio level attacks, organizations should ensure that mobile device management policies restrict connections to known or trusted cellular infrastructure where possible.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement for a rogue base station implies that attackers must be in physical proximity to the target device to facilitate the connection.

Analyst Recommendation

Given the potential for remote denial of service and the lack of user interaction required for exploitation, this vulnerability presents a notable risk to mobile device availability. Administrators and device manufacturers should prioritize the deployment of the specified patches to address the underlying stack overflow and restore system integrity.

Description Summary:
A NULL pointer dereference in the MediaTek modem firmware allows an attacker to trigger a remote system crash via a rogue base station.

Executive Summary:
A critical vulnerability in MediaTek modem firmware enables remote denial of service attacks without requiring user interaction or authentication.

Vulnerability Details

CVE-ID: CVE-2025-20793

Affected Software: MediaTek Modem

Affected Versions: MT2735, MT2737, MT6813, MT6815, MT6833, MT6835, MT6853, MT6855

Vulnerability: The vulnerability is a NULL pointer dereference (CWE-476) within the modem firmware. It can be triggered by an unauthenticated attacker controlling a rogue base station, causing the device to crash and resulting in a denial of service.

Business Impact

The ability to remotely crash a mobile device modem leads to significant service disruption and loss of connectivity. With a CVSS score of 7.5, this high severity flaw poses a risk to business continuity, particularly for mobile-dependent operations, as it requires no user interaction to execute.

Remediation Plan

Immediate Action: Organizations and users must apply the manufacturer security update (Patch ID: MOLY01430930) as provided in the January 2026 MediaTek security bulletin.

Proactive Monitoring: Monitor device logs for unexpected modem resets or intermittent connectivity loss that could indicate proximity to malicious radio environments.

Compensating Controls: Since this is a low-level firmware vulnerability, traditional WAFs are not applicable; ensure that device management policies restrict connections to known secure networks where possible.

Exploitation Status

Public Exploit Available: No.

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to the remote, unauthenticated nature of the attack vector via rogue base stations.

Analyst Recommendation

Given the high impact on device availability and the remote nature of the exploit, administrators should prioritize the deployment of the provided firmware patches. Affected devices should be updated immediately to eliminate the risk of remote denial of service attacks.

Description Summary:
A memory corruption vulnerability exists in MediaTek display drivers due to a use after free condition, potentially allowing for local privilege escalation.

Executive Summary:
A critical memory corruption vulnerability in multiple MediaTek chipsets could allow a local attacker to achieve privilege escalation.

Vulnerability Details

CVE-ID: CVE-2025-20781

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835

Vulnerability: This vulnerability involves a memory corruption issue triggered by a use after free flaw in the display component, which can lead to local privilege escalation if the attacker has already obtained system level access. The attack vector is local, and user interaction is not required for successful exploitation.

Business Impact

The potential for local privilege escalation poses a significant risk to the integrity and security of the affected devices. Given the CVSS score of 7.8, this vulnerability is classified as High, as it could allow an attacker with limited access to gain elevated system privileges, potentially leading to full device compromise and data exfiltration.

Remediation Plan

Immediate Action: Apply the vendor security update associated with Patch ID ALPS10182914 as provided in the January 2026 MediaTek security bulletin.

Proactive Monitoring: Security teams should monitor device logs for unusual system crashes or unexpected process behavior that may indicate memory corruption attempts.

Compensating Controls: Since this is a local privilege escalation, ensure that endpoint security policies restrict low privileged users from executing untrusted binaries or scripts that could leverage this flaw.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires the attacker to have already obtained system privileges, which limits the immediate attack surface but remains a serious concern for device hardening.

Analyst Recommendation

Organizations utilizing devices with the identified MediaTek chipsets must prioritize the deployment of the security patch (ALPS10182914). While the exploit requires local access, the risk of privilege escalation is severe and warrants immediate attention to prevent unauthorized system control.

Description Summary:
A memory corruption vulnerability due to use after free in MediaTek display drivers may allow local privilege escalation.

Executive Summary:
A critical use after free vulnerability in various MediaTek chipsets could allow an attacker with System privileges to achieve further escalation.

Vulnerability Details

CVE-ID: CVE-2025-20780

Affected Software: MediaTek MediaTek chipset

Affected Versions: MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835

Vulnerability: The vulnerability exists within the display component as a use after free condition (CWE-416). It requires the attacker to already possess System-level privileges to trigger the flaw for local privilege escalation, though no user interaction is required for the exploit to execute.

Business Impact

The potential for privilege escalation poses a significant risk to the integrity and security of the affected devices. A successful exploit could allow a malicious actor to bypass security boundaries, potentially leading to unauthorized data access or complete compromise of the device environment. Given the CVSS score of 7.8, this is considered a high-severity issue that should be addressed as part of regular security maintenance cycles.

Remediation Plan

Immediate Action: Apply the vendor-provided security updates associated with Patch ID ALPS10184061 as detailed in the January 2026 MediaTek security bulletin.

Proactive Monitoring: Monitor system logs for unusual crashes or instability within the display subsystem that may indicate attempted memory corruption.

Compensating Controls: Ensure that device security policies restrict the ability of low-privileged applications to interact with sensitive system-level processes.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for pre-existing System-level privileges limits the attack surface to scenarios where a device has already been partially compromised.

Analyst Recommendation

While this vulnerability requires a high level of pre-existing access, it represents a clear path for escalation that could undermine the entire device security model. Organizations utilizing hardware equipped with the affected MediaTek chipsets must prioritize the deployment of the official patch to prevent attackers from strengthening their foothold on compromised systems.

Description Summary:
A race condition in the MediaTek display driver leads to a use after free vulnerability, potentially allowing for local privilege escalation.

Executive Summary:
A use after free vulnerability in the MediaTek display driver can allow a privileged local attacker to achieve system level escalation of privilege.

Vulnerability Details

CVE-ID: CVE-2025-20779

Affected Software: MediaTek Chipset

Affected Versions: MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835

Vulnerability: This vulnerability is a use after free flaw triggered by a race condition within the display component. Exploitation requires an attacker to possess local system privileges to escalate their access further, though no user interaction is required.

Business Impact

The vulnerability carries a CVSS score of 7.0, indicating high severity due to the potential for total system compromise. Successful exploitation allows a local user to gain elevated privileges, which could lead to unauthorized data access, complete system control, and the potential for persistent malware installation on affected mobile or embedded devices.

Remediation Plan

Immediate Action: Organizations must obtain and apply the official security updates provided by the device manufacturer or MediaTek, specifically referencing Patch ID ALPS10184084.

Proactive Monitoring: Security teams should monitor system logs for unusual process crashes or kernel errors that may indicate failed attempts to trigger race conditions.

Compensating Controls: Ensure that device level security policies restrict the ability of unauthorized local applications to execute code with elevated permissions.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof of concept for this vulnerability. While the flaw requires the attacker to already possess system privileges, the potential for escalation makes this a significant risk for devices running the affected MediaTek chipsets.

Analyst Recommendation

Given the high impact of this privilege escalation vulnerability, it is imperative that manufacturers and users prioritize the application of the vendor provided security patch. Although local exploitation is required, the risk to system integrity is substantial, necessitating prompt remediation to prevent unauthorized privilege escalation.

Description Summary:
A missing bounds check in the MediaTek display driver results in an out of bounds write vulnerability, potentially enabling local privilege escalation for an attacker with system-level access.

Executive Summary:
A critical out of bounds write vulnerability in specific MediaTek chipsets could allow a locally authenticated attacker to escalate privileges and gain full control over the affected system.

Vulnerability Details

CVE-ID: CVE-2025-20778

Affected Software: MediaTek Chipset

Affected Versions: MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835

Vulnerability: The flaw is an out of bounds write (CWE-787) occurring within the display component. Exploitation requires an attacker to already possess system-level privileges to leverage this missing bounds check for further escalation.

Business Impact

Successful exploitation of this vulnerability poses a severe risk to device integrity and security. Because the flaw allows for privilege escalation, an attacker could bypass existing security boundaries to gain unauthorized control over the device, leading to full data compromise or persistent malicious activity. Given the CVSS score of 7.8, this represents a high-severity threat that necessitates immediate attention to prevent unauthorized system modification.

Remediation Plan

Immediate Action: Organizations and device manufacturers must apply the official security updates provided in the January 2026 MediaTek security bulletin, specifically referencing Patch ID ALPS10184870.

Proactive Monitoring: Security teams should monitor system logs for suspicious process behavior or unexpected crashes related to the display driver stack.

Compensating Controls: Ensure that device-level integrity protections, such as verified boot and kernel-level hardening, are enabled to limit the potential for an attacker to gain the initial system-level access required to trigger this flaw.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires existing system privileges, the potential for total impact makes it a significant concern for mobile and embedded device security.

Analyst Recommendation

The severity of this vulnerability, combined with its potential for full system compromise, makes the application of the vendor-provided patch a high priority. Administrators should coordinate with device vendors to verify the availability of the January 2026 security updates for their specific hardware models and deploy these fixes across their device fleet as soon as they are made available.

Description Summary:
A missing bounds check in the MediaTek display driver allows for an out of bounds read, potentially enabling local escalation of privilege for an attacker already possessing System-level access.

Executive Summary:
A vulnerability in the MediaTek display driver exposes multiple chipset models to local privilege escalation, posing a significant risk to device integrity.

Vulnerability Details

CVE-ID: CVE-2025-20768

Affected Software: MediaTek Chipsets (MT6739 through MT6991)

Affected Versions: Android 14.0, 15.0, 16.0

Vulnerability: The flaw is an out of bounds read (CWE-125) located within the display driver component. Successful exploitation requires the attacker to have already achieved System-level privileges, at which point they can escalate those privileges further.

Business Impact

The ability for an attacker to escalate privileges beyond the System level can result in total compromise of the affected mobile device. Given the CVSS score of 7.8, this vulnerability is considered High severity, as it facilitates unauthorized access to sensitive user data, system configuration, and kernel-level controls. Organizations relying on these devices for mobile operations should prioritize patching to prevent potential data exfiltration or device takeover.

Remediation Plan

Immediate Action: Apply the vendor-provided security update (Patch ID: ALPS10196993) distributed by the device manufacturer or the Android security update channel.

Proactive Monitoring: Monitor system logs for unauthorized attempts to access low-level display driver interfaces or abnormal service crashes that may indicate exploitation attempts.

Compensating Controls: Ensure that device-level security policies, such as mandatory access control (MAC) and restricted application sandboxing, are strictly enforced to limit the potential impact of a local escalation.

Exploitation Status

Public Exploit Available: exploit_available (unknown)

Analyst Notes: As of December 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the requirement for prior System-level privilege limits the initial attack surface, the potential for total system compromise makes this a critical concern for secure device management.

Analyst Recommendation

Due to the severity of this privilege escalation flaw, administrators must ensure that all affected devices receive the necessary firmware updates from their respective manufacturers. Prioritize deployment to devices handling sensitive corporate data to mitigate the risk of post-compromise escalation.

Description Summary:
An out of bounds write vulnerability exists in the display component due to an integer overflow, potentially allowing for local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek display drivers could allow a local attacker to achieve privilege escalation on affected Android devices.

Vulnerability Details

CVE-ID: CVE-2025-20767

Affected Software: MediaTek MT2718, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT8196, MT8676, MT8678, MT8792, MT8793

Affected Versions: Android 14.0, 15.0, 16.0

Vulnerability: The flaw is an out of bounds write (CWE-787) triggered by an integer overflow in the display component. Exploitation requires the attacker to already hold System-level privileges, though no user interaction is required once that initial threshold is met.

Business Impact

Successful exploitation leads to local privilege escalation, allowing an attacker to bypass security boundaries within the Android operating system. With a CVSS score of 7.8, this vulnerability poses a significant risk to data confidentiality, integrity, and system availability, as it enables an attacker to gain elevated control over the device hardware and software stack.

Remediation Plan

Immediate Action: Organizations should monitor for and apply the firmware updates provided by the device manufacturer, specifically referencing Patch ID ALPS10196993.

Proactive Monitoring: Security teams should monitor device logs for suspicious service crashes or unexpected process behavior involving system-level display components.

Compensating Controls: Ensure that device-level security policies, such as mandatory access control (SELinux) and rigorous application sandboxing, are strictly enforced to prevent initial compromise.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of December 3, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement for the attacker to already possess System privileges limits the immediate exploitability of this flaw in standard threat scenarios.

Analyst Recommendation

While the requirement for pre-existing system-level access limits the scope of this vulnerability, it remains a serious escalation path for malicious applications or sophisticated threats. Administrators should prioritize the deployment of vendor-supplied security patches as soon as they become available to ensure the integrity of the device kernel and display stack.

Description Summary:
A memory corruption vulnerability in the display driver of multiple MediaTek chipsets allows for local privilege escalation via improper input validation.

Executive Summary:
A critical memory corruption vulnerability in MediaTek display drivers could allow an attacker with system-level access to achieve further privilege escalation on affected Android devices.

Vulnerability Details

CVE-ID: CVE-2025-20766

Affected Software: MediaTek MT series chipsets

Affected Versions: MediaTek, Inc. MT2718, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT8196, MT8676, MT8678, MT8792, MT8793 running Android 14.0, 15.0, or 16.0.

Vulnerability: The vulnerability involves memory corruption within the display component due to improper input validation, specifically related to the use of uninitialized variables. An attacker who has already obtained system-level privileges can leverage this flaw to escalate privileges further without requiring user interaction.

Business Impact

The potential for local escalation of privilege poses a severe threat to device integrity and data confidentiality. While the CVSS score of 7.8 reflects a High severity, the impact is mitigated by the requirement for the attacker to already possess system-level access. Successful exploitation could lead to complete device compromise, allowing an attacker to bypass remaining security controls and access sensitive user or enterprise data stored on the hardware.

Remediation Plan

Immediate Action: Apply the vendor-provided firmware update associated with Patch ID ALPS10196993 as distributed by your device manufacturer or Android service provider.

Proactive Monitoring: Monitor system logs for unusual crashes or instability in display-related drivers that may indicate attempted memory corruption.

Compensating Controls: Ensure that all device security policies remain enforced and maintain strict control over applications with elevated system permissions to prevent the initial access required for this exploit.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of December 3, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires a sophisticated attacker who has already achieved system-level compromise, making it a targeted threat rather than a broad-spectrum exploit.

Analyst Recommendation

Given the potential for privilege escalation, organizations managing fleets of Android devices utilizing these MediaTek chipsets should prioritize the deployment of the December 2025 security updates. Administrators must coordinate with device manufacturers to ensure these patches are tested and rolled out to production environments as soon as they become available to maintain hardware-level security.

Description Summary:
A missing bounds check in the smi component of various MediaTek processors allows for an out of bounds write, potentially leading to local escalation of privilege.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek processors allows an attacker with existing system-level privileges to escalate their authority further.

Vulnerability Details

CVE-ID: CVE-2025-20764

Affected Software: MediaTek MT-series Processors

Affected Versions: Android 14.0, 15.0, 16.0 on specified MediaTek chipsets.

Vulnerability: The flaw exists in the smi component due to a missing bounds check, which results in an out of bounds write operation. An attacker who has already obtained System level privileges can leverage this vulnerability to gain further escalation of privilege without requiring user interaction.

Business Impact

Successful exploitation of this vulnerability poses a significant risk to the integrity and security of the underlying mobile platform. By enabling further privilege escalation, an attacker could bypass critical security boundaries, potentially leading to unauthorized access to sensitive user data or complete system compromise. Given the CVSS score of 7.8, this vulnerability is classified as High severity, necessitating prompt attention to mitigate the risk of platform-wide compromise.

Remediation Plan

Immediate Action: Apply the vendor-provided firmware update associated with Patch ID ALPS10259774 as detailed in the MediaTek December 2025 product security bulletin.

Proactive Monitoring: Monitor device logs for unusual system service behavior or attempts to access restricted memory regions that may indicate exploitation of lower-level system components.

Compensating Controls: Ensure that all security patches for the Android operating system are up to date, as modern Android kernels employ memory protections that may impede the exploitation of such low-level memory corruption flaws.

Exploitation Status

Public Exploit Available: No.

Analyst Notes: As of December 3, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires the attacker to already possess system-level privileges, the ability to perform an out of bounds write is a potent primitive for kernel-level manipulation.

Analyst Recommendation

Organizations and users deploying devices utilizing the affected MediaTek chipsets must prioritize the deployment of the December 2025 security firmware. While the prerequisite of system-level access limits the immediate threat landscape to more sophisticated attacks, the potential for permanent system compromise necessitates a rigorous patching cycle for all impacted hardware.

Description Summary:
A missing bounds check in the mmdvfs driver could result in an out of bounds write, potentially leading to local escalation of privilege if an attacker has already obtained System level access.

Executive Summary:
A critical out of bounds write vulnerability in the MediaTek mmdvfs driver may allow an attacker with elevated system privileges to escalate their access further, posing a severe risk to device integrity.

Vulnerability Details

CVE-ID: CVE-2025-20763

Affected Software: MediaTek mmdvfs driver

Affected Versions: MediaTek MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT8196, MT8676, MT8678, MT8792, MT8793, MT8796, MT8873, MT8893 running Android 14.0, 15.0, or 16.0.

Vulnerability: This is an out of bounds write vulnerability (CWE-787) occurring within the mmdvfs driver due to a missing bounds check. Exploitation requires the attacker to have already achieved System level privileges.

Business Impact

The vulnerability carries a CVSS score of 7.8, indicating a high severity risk. Successful exploitation allows a malicious actor to escalate privileges beyond the System level, potentially gaining full control over the device kernel or hardware resources. This could lead to permanent compromise of sensitive user data, unauthorized installation of persistent malware, or complete system instability.

Remediation Plan

Immediate Action: Apply the vendor-provided patch associated with Patch ID ALPS10267218 as detailed in the MediaTek December 2025 security bulletin.

Proactive Monitoring: Monitor device logs for unexpected driver crashes or kernel-level exceptions that may indicate attempts to trigger memory corruption errors in the mmdvfs component.

Compensating Controls: Ensure that all applications and services are restricted by robust Android permission models to limit the potential for an attacker to reach the necessary System privilege level required to trigger this flaw.

Exploitation Status

Public Exploit Available: No (exploit_available unknown).

Analyst Notes: As of December 3, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the requirement for existing System privilege limits the scope of potential attackers, the impact of kernel-level escalation makes this a significant security concern for enterprise environments using affected hardware.

Analyst Recommendation

Given the high CVSS score and the potential for deep system compromise, organizations should prioritize the deployment of the December 2025 MediaTek security updates. IT administrators should verify that all managed devices utilizing the listed MediaTek chipsets are running the patched firmware versions to eliminate the risk of privilege escalation.

Description Summary:
A reachable assertion in the MediaTek modem firmware allows an attacker to trigger a remote system crash via a rogue base station.

Executive Summary:
A critical vulnerability in MediaTek modem firmware could allow an attacker to trigger a remote denial of service on devices connected to a malicious base station.

Vulnerability Details

CVE-ID: CVE-2025-20762

Affected Software: MediaTek Modem

Affected Versions: MediaTek chipset: MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676

Vulnerability: The flaw is a reachable assertion (CWE-617) within the modem component. An unauthenticated attacker operating a rogue base station can trigger a system crash without requiring user interaction or elevated privileges.

Business Impact

This vulnerability poses a significant risk to operational continuity for mobile devices utilizing the affected MediaTek chipsets. Because the attack vector relies on a rogue base station, successful exploitation results in a remote denial of service, rendering the device unresponsive. Given the CVSS score of 7.5, this is a high-severity issue that could disrupt communications and mobile fleet availability if left unpatched.

Remediation Plan

Immediate Action: Update the affected device firmware to the version containing the patch associated with MediaTek Patch ID MOLY01685181.

Proactive Monitoring: Monitor device telemetry for unexpected modem reboots or intermittent connectivity drops that may indicate interaction with a malicious radio environment.

Compensating Controls: While direct mitigation is limited for modem-level flaws, maintaining updated security software and avoiding connection to untrusted or suspicious public cellular networks can reduce exposure.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for the attacker to operate a rogue base station provides a physical proximity constraint, though it remains a serious concern for mobile device security.

Analyst Recommendation

Organizations deploying devices with the affected MediaTek chipsets should prioritize the deployment of vendor-supplied security patches. Given the potential for remote denial of service, administrators must ensure that firmware update cycles are strictly followed to mitigate the risk posed by this assertion flaw.

Description Summary:
A flaw in the MediaTek modem chipset allows for a remote denial of service via incorrect error handling when a device connects to a malicious base station.

Executive Summary:
A critical vulnerability in MediaTek modem chipsets allows an unauthenticated attacker to trigger a system crash, resulting in a remote denial of service.

Vulnerability Details

CVE-ID: CVE-2025-20761

Affected Software: MediaTek Modem Chipset

Affected Versions: MT2735, MT2737, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T

Vulnerability: The vulnerability, categorized as CWE-754, involves improper checking for unusual conditions within the modem firmware. An unauthenticated attacker can trigger this condition by hosting a rogue base station, causing the device to crash without requiring user interaction or elevated privileges.

Business Impact

The exploitation of this vulnerability leads to a remote denial of service, effectively disconnecting affected devices from cellular networks. Given the CVSS score of 7.5, this poses a significant risk to operational continuity, particularly for mobile-reliant business processes, field communication, and remote device management.

Remediation Plan

Immediate Action: Apply the vendor-supplied security patch (Patch ID: MOLY01311265) as provided in the January 2026 MediaTek product security bulletin.

Proactive Monitoring: Monitor device connectivity logs for frequent or unexplained modem resets, which may indicate interaction with an unauthorized base station.

Compensating Controls: Ensure device firmware remains updated to the latest manufacturer baseline and avoid connecting to untrusted or non-standard cellular network environments.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently exploitable by forcing the target device to associate with a malicious radio access point, which requires specific radio hardware in proximity to the victim.

Analyst Recommendation

This vulnerability presents a moderate to high risk to mobile device availability. Organizations utilizing hardware containing the listed MediaTek chipsets should prioritize the deployment of the MOLY01311265 patch to prevent potential denial of service attacks against their mobile fleet.

Description Summary:
A reachable assertion in the MediaTek modem firmware allows unauthenticated attackers to cause a remote denial of service via a rogue base station.

Executive Summary:
A critical vulnerability in MediaTek chipsets could allow an unauthenticated attacker to trigger a remote denial of service by forcing a device to connect to a malicious base station.

Vulnerability Details

CVE-ID: CVE-2025-20760

Affected Software: MediaTek Chipsets (MT2735, MT2737, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875)

Affected Versions: MT2735, MT2737, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875

Vulnerability: The vulnerability is a reachable assertion (CWE-617) within the modem firmware, triggered by an uncaught exception that leads to a read of uninitialized heap data. An unauthenticated attacker operating a rogue base station can trigger this condition without user interaction to crash the device modem.

Business Impact

The vulnerability carries a CVSS score of 7.5, reflecting a high risk to availability. Successful exploitation results in a remote denial of service, rendering mobile devices unable to communicate, which poses significant operational risks for critical infrastructure and mobile-dependent business workflows.

Remediation Plan

Immediate Action: Update affected devices to the firmware version containing patch ID MOLY01676750 as provided in the January 2026 MediaTek security bulletin.

Proactive Monitoring: Monitor device connectivity logs for unexpected disconnections or frequent modem resets which may indicate interaction with an unauthorized cellular base station.

Compensating Controls: Ensure device firmware is managed through centralized MDM policies and avoid connecting to untrusted or public cellular networks where possible.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of January 7, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires the attacker to operate a rogue base station, the lack of required privileges or user interaction makes this an attractive target for localized denial of service attacks.

Analyst Recommendation

Given the potential for remote denial of service on mobile devices, organizations should prioritize firmware updates for all mobile assets utilizing the affected MediaTek chipsets. Administrators must verify that the specific patch ID MOLY01676750 is applied to restore modem stability and prevent exploitation.

Description Summary:
A heap-based out of bounds write vulnerability exists in the MediaTek WLAN AP driver due to an incorrect bounds check, allowing for potential privilege escalation.

Executive Summary:
A heap overflow vulnerability in the MediaTek WLAN AP driver could allow an adjacent attacker to achieve remote privilege escalation without user interaction.

Vulnerability Details

CVE-ID: CVE-2025-20742

Affected Software: MediaTek WLAN AP Driver (MT6890, MT7603, MT7615, MT7622, MT7915, MT7916, MT7981, MT7986)

Affected Versions: SDK release 7.6.7.2 and before; OpenWrt 19.07 and 21.02

Vulnerability: This is a heap overflow (CWE-122) triggered by an incorrect bounds check in the wireless access point driver. The vulnerability can be exploited by an adjacent attacker to gain elevated privileges, requiring no interaction from the user.

Business Impact

Successful exploitation of this vulnerability allows an attacker to compromise the integrity and availability of the affected networking hardware. Given the CVSS score of 8.0, this high severity flaw poses a significant risk to network infrastructure, potentially granting attackers unauthorized control over communication gateways or wireless access points.

Remediation Plan

Immediate Action: Update the affected device firmware or SDK to the version specified in the MediaTek product security bulletin, referencing Patch ID WCNCR00432680.

Proactive Monitoring: Monitor network traffic for unusual patterns or malformed packets directed at wireless management interfaces that may indicate exploitation attempts.

Compensating Controls: Restrict management access to wireless infrastructure to trusted administrative subnets and implement network segmentation to limit the exposure of vulnerable hardware to untrusted segments.

Exploitation Status

Public Exploit Available: exploit_available (false)

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for adjacency makes it a targeted risk for local network environments.

Analyst Recommendation

Organizations utilizing MediaTek wireless chipsets must prioritize the deployment of the vendor-provided firmware updates. Due to the potential for privilege escalation and the critical nature of core networking components, patching should be scheduled as a high-priority maintenance task to prevent unauthorized network control.

Description Summary:
A stack-based buffer overflow exists in the MediaTek WLAN AP driver due to an incorrect bounds check, potentially allowing local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in the MediaTek WLAN AP driver could allow a local attacker to escalate privileges on the affected system.

Vulnerability Details

CVE-ID: CVE-2025-20737

Affected Software: MediaTek WLAN AP Driver

Affected Versions: SDK release 7.6.7.2 and before; openWRT 19.07 and 21.02

Vulnerability: This vulnerability involves a stack-based buffer overflow (CWE-121) triggered by an incorrect bounds check within the WLAN AP driver. Successful exploitation requires the attacker to possess local user execution privileges, though no user interaction is required to trigger the flaw.

Business Impact

The vulnerability carries a CVSS score of 7.8, indicating a high severity risk. Successful exploitation allows a local user to achieve full privilege escalation, which could result in a total compromise of the affected device or system. Such access could lead to the unauthorized modification of system configurations, data exfiltration, or the disruption of critical network services.

Remediation Plan

Immediate Action: Update the affected MediaTek WLAN AP driver to the version specified in the November 2025 vendor security bulletin (Patch ID: WCNCR00435343).

Proactive Monitoring: Monitor system logs for unusual kernel-level activity or crashes related to the WLAN driver that may indicate exploitation attempts.

Compensating Controls: Restrict local shell access to untrusted users and ensure that only authorized personnel have the ability to execute code on devices running the affected driver.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to its potential for privilege escalation, but it currently remains limited by the requirement for prior local access.

Analyst Recommendation

Given the potential for complete system compromise via privilege escalation, immediate patching is required. Organizations should prioritize updating all devices utilizing the affected MediaTek SDK versions to the latest available release to eliminate this attack vector.

Description Summary:
A heap-based buffer overflow exists in MediaTek wlan AP drivers due to an incorrect bounds check, potentially allowing local privilege escalation.

Executive Summary:
A heap overflow vulnerability in MediaTek wlan AP drivers allows a local attacker with user-level privileges to achieve escalation of privilege.

Vulnerability Details

CVE-ID: CVE-2025-20735

Affected Software: MediaTek wlan AP driver

Affected Versions: MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 (SDK release 7.6.7.2 and before, openWRT 19.07, 21.02)

Vulnerability: This is a heap overflow (CWE-122) occurring within the wlan AP driver due to insufficient bounds checking. Exploitation requires the attacker to possess local user execution privileges, but no user interaction is required to trigger the flaw.

Business Impact

Successful exploitation of this vulnerability results in a local escalation of privilege, granting an attacker unauthorized access to system-level functions. Given the CVSS score of 7.8, this flaw presents a high risk to system integrity and confidentiality, potentially enabling an attacker to bypass security controls or gain full control over the affected device.

Remediation Plan

Immediate Action: Update the affected MediaTek SDK or openWRT firmware to a version beyond 7.6.7.2 as specified in the MediaTek product security bulletin.

Proactive Monitoring: Monitor system logs for unexpected driver crashes or unusual kernel-level activity associated with the wlan AP driver.

Compensating Controls: Ensure that local access to systems utilizing these drivers is strictly restricted to authorized users and that principle of least privilege is enforced to limit the potential for local exploitation.

Exploitation Status

Public Exploit Available: No — exploit_available (unknown).

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for local execution privileges somewhat limits the attack surface, but the impact of a heap overflow remains significant.

Analyst Recommendation

Organizations utilizing devices equipped with the affected MediaTek chipsets should prioritize applying the vendor-provided updates immediately. While the vulnerability requires local access, the potential for privilege escalation poses a serious threat, and patching the driver remains the only effective means of eliminating this risk.

Description Summary:
A heap-based buffer overflow in the MediaTek WLAN AP driver allows a local user to achieve privilege escalation via an out of bounds write due to an incorrect bounds check.

Executive Summary:
A heap overflow vulnerability in MediaTek WLAN AP drivers could allow a local attacker with user-level privileges to escalate their access to the system.

Vulnerability Details

CVE-ID: CVE-2025-20733

Affected Software: MediaTek WLAN AP Driver

Affected Versions: SDK release 7.6.7.2 and before, openWRT 19.07, 21.02

Vulnerability: This vulnerability is a heap overflow (CWE-122) caused by an incorrect bounds check within the WLAN access point driver. An attacker who has already obtained local user execution privileges can leverage this flaw to execute code with elevated permissions without requiring user interaction.

Business Impact

Successful exploitation of this vulnerability results in a local escalation of privilege, granting an attacker control over the affected system. Given the CVSS score of 7.8, this represents a high-severity risk to system integrity and confidentiality, potentially allowing attackers to bypass security boundaries, access sensitive data, or install persistent malware on the underlying hardware.

Remediation Plan

Immediate Action: Update the affected MediaTek SDK to a version later than 7.6.7.2 or apply the vendor-provided patch WCNCR00441509.

Proactive Monitoring: Monitor system logs for unauthorized attempts to access kernel-level functions or unexpected driver crashes that may indicate exploitation attempts.

Compensating Controls: Restrict local access to the affected devices to only authorized and trusted personnel to prevent the initial user-level execution required for this exploit.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability is technically complex to weaponize, the nature of heap overflows in driver code makes this a significant risk for systems where local account security is not strictly enforced.

Analyst Recommendation

This vulnerability presents a clear path for local privilege escalation on MediaTek-powered networking hardware. Organizations should prioritize updating their firmware to the latest vendor-released versions as specified in the November 2025 product security bulletin. Applying these patches is essential to prevent attackers from gaining full control over affected access points and routers.

Description Summary:
A heap-based out of bounds write vulnerability exists in the MediaTek wlan STA driver due to an incorrect bounds check, potentially allowing local privilege escalation.

Executive Summary:
A high-severity heap overflow vulnerability in MediaTek wlan drivers could allow a local attacker with user-level privileges to escalate their permissions on the affected system.

Vulnerability Details

CVE-ID: CVE-2025-20728

Affected Software: MediaTek MT7902, MT7920, MT7921, MT7922, MT7925, MT7927

Affected Versions: NB SDK release 3.7 and before

Vulnerability: This is a heap overflow vulnerability (CWE-122) triggered by an incorrect bounds check within the wlan STA driver. Successful exploitation requires the attacker to already possess local user execution privileges, but no user interaction is required to achieve escalation.

Business Impact

The ability for a local user to escalate privileges to a higher level poses a significant risk to system integrity and confidentiality. By gaining elevated access, an attacker could bypass security controls, access sensitive data, or install persistent malicious software, leading to a complete compromise of the host system. Given the CVSS score of 7.8, this flaw represents a high-risk entry point for lateral movement within a corporate network.

Remediation Plan

Immediate Action: Update the affected MediaTek wlan drivers or apply the vendor-provided patch WCNCR00447115 as detailed in the November 2025 MediaTek security bulletin.

Proactive Monitoring: Monitor system logs for unusual driver crashes or unexpected process elevation attempts that may indicate exploitation of the wlan driver.

Compensating Controls: Restrict local user access to sensitive system configurations and ensure that the principle of least privilege is strictly enforced to limit the potential impact of local privilege escalation.

Exploitation Status

Public Exploit Available: No — there is no confirmed public exploit in the available data.

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof of concept for this vulnerability. The flaw's requirement for local access naturally limits its exploitability to internal threat actors or those who have already gained a foothold on the target machine.

Analyst Recommendation

Organizations utilizing MediaTek hardware within the specified SDK versions must prioritize the application of the vendor patch. Because this vulnerability allows for local privilege escalation, it is imperative to address this flaw to prevent attackers from deepening their control over compromised endpoints. Please consult the official MediaTek product security bulletin for integration instructions.

Description Summary:
A heap buffer overflow in the MediaTek modem firmware allows for unauthenticated remote privilege escalation via a rogue base station.

Executive Summary:
A critical heap buffer overflow in MediaTek modem firmware permits remote privilege escalation when a device connects to a malicious base station.

Vulnerability Details

CVE-ID: CVE-2025-20727

Affected Software: MediaTek Modem

Affected Versions: MediaTek MT2735, MT2737, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769K, MT6769S, MT6769T, MT6769Z, MT6771, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8666, MT8667, MT8673, MT8675, MT8676, MT8678, MT8765, MT8766, MT8766R, MT8768, MT8771, MT8786, MT8788, MT8788E, MT8791, MT8791T, MT8792, MT8793, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 (Modem firmware versions LR12A, NR15, NR16, NR17, NR17R)

Vulnerability: This vulnerability is an out of bounds write (CWE-787) triggered by a heap buffer overflow in the modem firmware. An unauthenticated attacker can exploit this by enticing a mobile device to connect to a rogue cellular base station.

Business Impact

A successful exploit allows an attacker to achieve remote privilege escalation on the affected device without any user interaction. Given the CVSS score of 7.5, this poses a significant risk to organizational mobility security, as compromised devices could lead to complete data exposure or persistent unauthorized access within a corporate network.

Remediation Plan

Immediate Action: Identify devices utilizing the listed MediaTek chipsets and apply the vendor provided security update, specifically referencing patch ID MOLY01672601, as soon as it becomes available from the device manufacturer.

Proactive Monitoring: Monitor device security logs for unusual baseband errors or unexpected connection drops that may indicate interaction with non-standard cellular infrastructure.

Compensating Controls: Since this is a firmware-level vulnerability, compensating controls are limited; however, users should be advised to avoid connecting to unknown or suspicious cellular networks in high risk environments.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof of concept for this vulnerability. While the exploit requires proximity to a rogue base station, the lack of required authentication or user interaction makes this a significant concern for mobile fleet security.

Analyst Recommendation

Organizations should prioritize patching affected mobile devices as soon as firmware updates are released by their respective hardware vendors. Given the potential for remote privilege escalation, failing to address this vulnerability leaves mobile endpoints susceptible to intercept and control via malicious cellular signals.

Description Summary:
A heap-based out of bounds write vulnerability in MediaTek modems allows for remote privilege escalation when connected to a rogue base station.

Executive Summary:
A heap overflow vulnerability in MediaTek modems, classified with a CVSS score of 7.5, could allow an attacker to achieve remote privilege escalation without user interaction.

Vulnerability Details

CVE-ID: CVE-2025-20726

Affected Software: MediaTek Modem

Affected Versions: Multiple chipsets including MT2735, MT6739, MT6899, and others running Modem firmware versions LR12A, NR15, NR16, NR17, and NR17R.

Vulnerability: This is a heap overflow (CWE-122) caused by an incorrect bounds check within the modem firmware. An attacker can trigger this vulnerability by deploying a rogue base station, requiring no user interaction and low privileges.

Business Impact

Successful exploitation of this vulnerability permits an attacker to perform remote privilege escalation, potentially granting them unauthorized control over the device communication layer. Given the CVSS score of 7.5, this represents a significant risk to data confidentiality, integrity, and system availability. Compromise at this level could lead to unauthorized access to sensitive user data and persistent control over the affected mobile device.

Remediation Plan

Immediate Action: Apply the vendor-provided security update corresponding to Patch ID MOLY01672598, as detailed in the November 2025 MediaTek product security bulletin.

Proactive Monitoring: Monitor device connection logs for unusual base station handovers or unexpected modem behavior that may indicate interaction with malicious radio environments.

Compensating Controls: While standard network-level WAFs are ineffective against radio-based attacks, ensure that device firmware integrity checks are enabled and that security patches are deployed via the device manufacturer's update channel.

Exploitation Status

Public Exploit Available: exploit_available (false)

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The vulnerability requires the attacker to operate a rogue base station, which limits the immediate threat landscape to proximity-based scenarios.

Analyst Recommendation

This vulnerability presents a high risk due to the potential for remote code execution at the modem firmware level. Organizations and users should prioritize the deployment of firmware updates provided by their device manufacturer. Failure to patch leaves the device susceptible to compromise when connecting to malicious cellular infrastructure.

Description Summary:
A missing bounds check in the MediaTek ims service allows for an out of bounds write, potentially leading to remote privilege escalation without user interaction.

Executive Summary:
A critical out of bounds write vulnerability in the MediaTek ims service could allow an attacker to achieve remote privilege escalation by leveraging a rogue base station.

Vulnerability Details

CVE-ID: CVE-2025-20725

Affected Software: MediaTek ims service

Affected Versions: Multiple MediaTek MT series chipsets, including MT2735 through MT8893, specifically those utilizing Modem versions LR12A, NR15, and NR16.

Vulnerability: The vulnerability is an out of bounds write (CWE-787) occurring within the ims service. An attacker controlling a rogue base station can trigger this flaw to achieve remote privilege escalation without requiring user interaction or additional execution privileges.

Business Impact

The ability to achieve remote privilege escalation poses a significant risk to mobile device integrity and user data privacy. Given the CVSS score of 7.5, this high severity vulnerability could result in full system compromise, unauthorized access to sensitive information, or the installation of malicious software. Organizations relying on affected MediaTek-based hardware must prioritize remediation to prevent potential exploitation in mobile environments.

Remediation Plan

Immediate Action: Apply the vendor-provided security update (Patch ID: MOLY01671924) as released by MediaTek in their November 2025 security bulletin.

Proactive Monitoring: Monitor device logs for unexpected service crashes or anomalous behavior in the ims service, which may indicate attempted exploitation.

Compensating Controls: Ensure device firmware is kept up to date and avoid connecting to untrusted or public cellular networks where rogue base station attacks are more likely to occur.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of November 4, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the flaw is theoretically dangerous due to the remote attack vector, exploitation requires the attacker to successfully position a rogue base station to intercept the device connection.

Analyst Recommendation

This vulnerability represents a high-risk security flaw that facilitates remote privilege escalation. Organizations and users should immediately verify their device modem firmware versions against the MediaTek November 2025 security bulletin and apply the necessary patches. Failure to remediate this issue leaves devices vulnerable to compromise if they connect to malicious cellular infrastructure.

Description Summary:
A local out-of-bounds write vulnerability in the MediaTek GNSS driver allows for privilege escalation when triggered by an attacker who already possesses System-level access.

Executive Summary:
A high-severity out-of-bounds write vulnerability in the MediaTek GNSS driver could allow an attacker with System-level access to achieve further privilege escalation on affected Android devices.

Vulnerability Details

CVE-ID: CVE-2025-20723

Affected Software: MediaTek GNSS Driver

Affected Versions: MediaTek MT6835, MT6878, MT6886, MT6897, MT6899, MT6985, MT6989, MT6991, MT8676, MT8678, MT8775, MT8791T, MT8796, MT8873 running Android 14.0 or 15.0

Vulnerability: The vulnerability stems from an incorrect bounds check within the GNSS driver, which leads to an out-of-bounds write condition (CWE-787). An attacker must already hold System-level privileges to initiate this exploit, at which point no further user interaction is required to achieve escalation.

Business Impact

The exploitation of this flaw poses a significant risk to the integrity and security of mobile devices utilizing the affected MediaTek chipsets. With a CVSS score of 7.8, the vulnerability permits full compromise of confidentiality, integrity, and availability once the attacker has bypassed initial System-level restrictions. This could lead to total device takeover, unauthorized data exfiltration, or the installation of persistent malicious payloads.

Remediation Plan

Immediate Action: Organizations and users must apply the official security updates provided by MediaTek or their respective device manufacturers, specifically referencing Patch ID ALPS09920033.

Proactive Monitoring: Security teams should monitor system logs for unusual process behavior or unauthorized attempts to interact with hardware drivers, particularly those originating from processes already running with elevated system permissions.

Compensating Controls: Ensure that all security patches for the underlying Android operating system are up to date, as these may contain hardening measures that mitigate the impact of lower-level driver vulnerabilities.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires the attacker to have already compromised the System-level environment, the potential for escalation makes this a critical concern for secure device management.

Analyst Recommendation

Given the severity of this privilege escalation flaw, it is imperative that all affected hardware is patched as soon as the firmware updates become available from the device manufacturer. Administrators should prioritize the deployment of these updates to ensure that the driver-level bounds checking is correctly implemented, thereby closing the window for post-compromise escalation.

Description Summary:
A missing bounds check in the MediaTek imgsensor component allows for an out-of-bounds write, potentially leading to local privilege escalation.

Executive Summary:
An out-of-bounds write vulnerability in MediaTek imgsensor components allows an attacker with existing system-level access to achieve local privilege escalation.

Vulnerability Details

CVE-ID: CVE-2025-20721

Affected Software: MediaTek Imgsensor

Affected Versions: MT6886, MT6897, MT6899, MT6985, MT6989, MT6991, MT8195, MT8196, MT8370, MT8390, MT8395, MT8792, MT8793 running Android 13.0, 14.0, 15.0, or 16.0

Vulnerability: This is an out-of-bounds write flaw (CWE-787) occurring within the imgsensor driver. While the vulnerability requires the attacker to have already obtained system-level privileges, it allows for further escalation of privilege without user interaction.

Business Impact

The vulnerability carries a CVSS score of 7.8, indicating a high severity due to its potential for total system compromise. If exploited, an attacker could bypass existing security boundaries, leading to unauthorized data access, persistence, or full control over the affected mobile device hardware.

Remediation Plan

Immediate Action: Apply the vendor-provided security update identified by Patch ID ALPS10089545 as released in the October 2025 MediaTek security bulletin.

Proactive Monitoring: Monitor system logs for unusual driver activity or unexpected process crashes associated with image sensor operations.

Compensating Controls: Ensure that device integrity protections, such as verified boot and restricted SELinux policies, are strictly enforced to limit the impact of post-exploitation activities.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires a significant prerequisite of existing system-level access, which limits the immediate attack surface for remote actors.

Analyst Recommendation

Although this vulnerability requires prior system-level access, the risk of privilege escalation is significant for mobile device security. Administrators and device manufacturers should prioritize the deployment of the October 2025 security patch to address the underlying bounds check failure and maintain the security integrity of the affected hardware.

Description Summary:
A heap overflow vulnerability in the MediaTek WLAN AP driver allows an adjacent, unauthenticated attacker to execute arbitrary code or escalate privileges through an incorrect bounds check.

Executive Summary:
A critical heap overflow vulnerability in multiple MediaTek WLAN drivers allows unauthenticated, adjacent attackers to achieve remote code execution and privilege escalation.

Vulnerability Details

CVE-ID: CVE-2025-20720

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MT6890, MT7603, MT7615, MT7622, MT7915, MT7916, MT7981, MT7986: SDK release 7.6.7.2 and before / OpenWrt 19.07, 21.02

Vulnerability: This vulnerability is a heap-based buffer overflow (CWE-122) caused by an incorrect bounds check in the WLAN access point driver. It permits an unauthenticated attacker, located in the proximal or adjacent network range, to achieve remote code execution or escalate privileges without requiring user interaction.

Business Impact

The potential for unauthorized code execution at the driver level poses a severe risk to the confidentiality, integrity, and availability of affected networking hardware. Given the CVSS score of 8.8, this vulnerability is classified as High, reflecting the significant danger of total system compromise for devices running the vulnerable driver stack. Successful exploitation could allow an attacker to gain full control over wireless access points, potentially facilitating lateral movement into protected internal networks.

Remediation Plan

Immediate Action: Organizations should review the MediaTek product security bulletin for October 2025 and prioritize the application of vendor-supplied firmware updates or SDK patches where available.

Proactive Monitoring: Security teams should monitor wireless infrastructure logs for unusual traffic patterns or unexpected device reboots, which may indicate crash attempts or exploitation of the driver.

Compensating Controls: Network segmentation should be utilized to isolate wireless access points from sensitive core network segments, effectively limiting the blast radius of a potential compromise.

Exploitation Status

Public Exploit Available: Yes — a public proof-of-concept exists as documented in the GitHub repository shinthink/CVE-2025-20720.

Analyst Notes: As of October 15, 2025, there is no confirmed active exploitation in the wild. The existence of a public proof-of-concept makes this vulnerability highly dangerous, as it provides a baseline for attackers to develop functional exploit code.

Analyst Recommendation

The presence of a public proof-of-concept repository significantly elevates the risk profile of this vulnerability, as it lowers the barrier for exploitation by malicious actors. Administrators must treat this as a high priority issue and verify the status of vendor-provided firmware updates immediately to prevent potential network-wide breaches.

Description Summary:
The MediaTek WLAN AP driver contains an out of bounds write vulnerability due to an incorrect bounds check, potentially allowing for privilege escalation via adjacent network access.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek WLAN AP drivers poses a significant risk of unauthorized privilege escalation for adjacent attackers.

Vulnerability Details

CVE-ID: CVE-2025-20719

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MT6890, MT7603, MT7615, MT7622, MT7915, MT7916, MT7981, MT7986 (SDK release 7.6.7.2 and before; OpenWrt 19.07, 21.02)

Vulnerability: This is a stack-based buffer overflow (CWE-121) occurring within the wireless access point driver. The flaw allows an unauthenticated, adjacent attacker to trigger an out of bounds write, which may result in remote escalation of privilege without requiring user interaction.

Business Impact

The CVSS score of 8.8 highlights the high severity of this flaw, as it grants an attacker significant control over the affected device. Successful exploitation could lead to full system compromise, unauthorized data access, and the potential to pivot further into the internal network, causing severe operational disruption and loss of confidentiality.

Remediation Plan

Immediate Action: Organizations must identify devices running the affected MediaTek chipsets and update to the latest SDK or firmware provided by the vendor, specifically ensuring versions beyond SDK release 7.6.7.2 are deployed.

Proactive Monitoring: Security teams should monitor wireless network traffic for anomalous patterns or spikes in management frame traffic that might indicate an attempt to trigger an overflow condition.

Compensating Controls: While difficult to mitigate at the network layer due to the nature of WLAN driver flaws, restricting access to wireless management interfaces and implementing strict segmentation of wireless infrastructure can reduce the attack surface.

Exploitation Status

Public Exploit Available: Exploit_available: unknown. There is no evidence of a weaponized exploit or public proof-of-concept in the analyzed data.

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to its location in the driver stack, which operates with high system privileges.

Analyst Recommendation

Given the potential for privilege escalation and the proximity of the attack vector, this vulnerability should be prioritized for patching. Administrators must verify device firmware versions against the MediaTek product security bulletin and apply updates immediately to prevent potential exploitation.

Description Summary:
A stack-based buffer overflow exists in the MediaTek WLAN AP driver due to an incorrect bounds check, potentially allowing local privilege escalation.

Executive Summary:
A critical stack-based buffer overflow in the MediaTek WLAN AP driver could allow a local attacker to escalate privileges on affected devices.

Vulnerability Details

CVE-ID: CVE-2025-20718

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 (SDK release 7.6.7.2 and before / openWRT 19.07, 21.02)

Vulnerability: The vulnerability is a stack-based out of bounds write (CWE-121) caused by an incorrect bounds check in the WLAN AP driver. An attacker with local user execution privileges can exploit this flaw to achieve full system compromise without requiring user interaction.

Business Impact

The ability for a local user to escalate privileges represents a significant risk to device integrity and confidentiality. Given the CVSS score of 7.8, this vulnerability is categorized as High severity, as it allows unauthorized access to administrative functions or sensitive data stored on the hardware. Successful exploitation could lead to full system takeover, potentially impacting the availability and security of the broader network environment where these access points are deployed.

Remediation Plan

Immediate Action: Organizations should review the MediaTek product security bulletin for October 2025 and apply the provided SDK or firmware updates (Patch ID: WCNCR00419945) to all vulnerable hardware.

Proactive Monitoring: Monitor system logs for unusual process crashes or unexpected kernel-level errors that may indicate an attempt to trigger the stack overflow.

Compensating Controls: Restrict local user access on devices running the affected driver versions to minimize the attack surface for potential local privilege escalation attempts.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the exploit requires local access, the nature of a stack overflow in driver code makes it a high-value target for privilege escalation research.

Analyst Recommendation

Given the potential for local privilege escalation and the critical nature of driver-level vulnerabilities, administrators must prioritize the identification of affected hardware within their infrastructure. Applying the vendor-provided patch is the only definitive way to remediate this vulnerability, and it should be scheduled for deployment as soon as testing permits.

Description Summary:
A stack-based buffer overflow exists in the MediaTek WLAN AP driver due to an incorrect bounds check, potentially allowing local privilege escalation for an attacker with system-level access.

Executive Summary:
A vulnerability in the MediaTek WLAN AP driver allows for local privilege escalation via a stack-based out of bounds write, posing a significant risk to system integrity.

Vulnerability Details

CVE-ID: CVE-2025-20717

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986: SDK release 7.6.7.2 and before; openWRT 19.07, 21.02 (MT6890)

Vulnerability: The flaw is a stack-based buffer overflow (CWE-121) occurring within the WLAN AP driver due to insufficient bounds checking. Exploitation requires the attacker to have already achieved system-level privileges on the target device.

Business Impact

The vulnerability carries a CVSS score of 7.8, indicating a High severity impact. While exploitation requires prior system-level access, successful execution allows an attacker to escalate privileges or potentially execute arbitrary code, which could lead to full system compromise, loss of confidentiality, and unauthorized control over network infrastructure components.

Remediation Plan

Immediate Action: Update the affected MediaTek SDK to release version 7.6.7.3 or later, or apply the vendor-provided patch WCNCR00419946 to the affected firmware.

Proactive Monitoring: Monitor system logs for unexpected driver crashes or kernel panics that may indicate an attempt to trigger the out of bounds write condition.

Compensating Controls: Ensure strict access control policies are in place to prevent unauthorized users from gaining system-level access, as this is a prerequisite for exploiting this vulnerability.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Because the vulnerability requires the attacker to already possess system-level privileges, the inherent exploitability is limited to scenarios where a secondary compromise has already occurred.

Analyst Recommendation

Given the severity of potential privilege escalation within the network driver stack, organizations utilizing the affected MediaTek hardware must prioritize the application of security patches. Verify that all firmware and SDK versions are updated to the latest available releases provided by MediaTek to mitigate this risk effectively.

Description Summary:
A vulnerability in the MediaTek WLAN AP driver allows an out of bounds write due to an incorrect bounds check, potentially leading to local privilege escalation.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek WLAN drivers may allow a local attacker to escalate privileges to the system level.

Vulnerability Details

CVE-ID: CVE-2025-20716

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986: SDK release 7.6.7.2 and before; openWRT 19.07, 21.02 (MT6890)

Vulnerability: The flaw is an out of bounds write (CWE-787) occurring within the wireless access point driver. An attacker who has already obtained local system access can leverage this flaw to escalate privileges, requiring no user interaction.

Business Impact

The ability for a local attacker to escalate privileges to the System level represents a severe compromise of host integrity. Given the CVSS score of 7.8, this vulnerability poses a high risk to organizational security, as it allows unauthorized control over affected networking infrastructure. Such access could lead to persistent malware installation, data exfiltration, or the total disruption of network services.

Remediation Plan

Immediate Action: Review the official MediaTek product security bulletin for October 2025 and apply the recommended SDK or firmware updates associated with Patch ID WCNCR00421149.

Proactive Monitoring: Monitor system logs for unusual kernel-level activity or unauthorized attempts to interact with wireless driver interfaces.

Compensating Controls: Restrict local user access to the device management interface and ensure that only authorized personnel have high-level privileges on the target hardware.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires existing local access, the potential for full system compromise makes remediation a high priority.

Analyst Recommendation

Organizations utilizing affected MediaTek wireless chipsets should prioritize the deployment of vendor-supplied patches to eliminate the underlying out of bounds write vulnerability. Security teams must ensure that firmware update cycles are maintained to mitigate the risk of privilege escalation by local actors. Immediate patching is the most effective method to neutralize this threat.

Description Summary:
A memory corruption vulnerability in the MediaTek WLAN AP driver allows local privilege escalation due to an incorrect bounds check during memory write operations.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek WLAN drivers poses a risk of local privilege escalation to system-level access.

Vulnerability Details

CVE-ID: CVE-2025-20715

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 (SDK release 7.6.7.2 and before; openWRT 19.07, 21.02)

Vulnerability: This is an out of bounds write vulnerability (CWE-787) occurring within the wlan AP driver. The flaw can be triggered by an attacker who has already obtained local system access, allowing them to escalate privileges without requiring further user interaction.

Business Impact

The ability to escalate privileges to the system level allows an attacker to bypass security controls, persist within the environment, and potentially gain full control over the host hardware. With a CVSS score of 7.8, this vulnerability represents a high risk to the integrity and confidentiality of systems using affected MediaTek wireless chipsets. Organizations should prioritize remediation to prevent lateral movement or unauthorized system administration by compromised local accounts.

Remediation Plan

Immediate Action: Update the affected MediaTek WLAN AP driver to the latest version, specifically ensuring the implementation of Patch ID WCNCR00421152 as detailed in the vendor security bulletin.

Proactive Monitoring: Monitor system logs for unusual driver crashes or unauthorized attempts to access restricted memory ranges, which may indicate exploitation attempts.

Compensating Controls: Since this requires prior local access, enforce strict least privilege policies and utilize endpoint detection and response tools to monitor for unauthorized privilege escalation patterns.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The vulnerability requires the attacker to already possess local access, which significantly limits the initial attack surface for remote threats.

Analyst Recommendation

Given the potential for complete system compromise, administrators should treat this vulnerability with high priority. Apply the vendor-provided patch as soon as it is validated for your specific hardware environment to mitigate the risk of privilege escalation.

Description Summary:
A stack-based out of bounds write vulnerability exists in the MediaTek WLAN AP driver due to an incorrect bounds check, potentially allowing local privilege escalation.

Executive Summary:
A high-severity stack overflow vulnerability in MediaTek WLAN AP drivers could allow a local attacker with system-level access to escalate privileges.

Vulnerability Details

CVE-ID: CVE-2025-20714

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 (SDK release 7.6.7.2 and before, openWRT 19.07, 21.02)

Vulnerability: This is a stack overflow (CWE-121) occurring within the WLAN access point driver. The flaw requires an attacker to already possess system-level privileges to trigger the incorrect bounds check, which then allows for further escalation or unauthorized control.

Business Impact

Successful exploitation of this vulnerability enables a local attacker to escalate privileges, potentially gaining full control over the affected network device. Given the CVSS score of 7.8, this poses a significant risk to network infrastructure integrity and confidentiality. Unauthorized access at this level could lead to persistent compromise of gateway hardware and potential lateral movement within the connected network.

Remediation Plan

Immediate Action: Apply the vendor-supplied security update (Patch ID: WCNCR00432659) provided in the October 2025 MediaTek security bulletin.

Proactive Monitoring: Monitor system logs for unusual driver crashes or kernel-level errors that may indicate an attempt to trigger the stack overflow.

Compensating Controls: Restrict local system access to authorized personnel only to minimize the risk of an attacker reaching the required privilege level to exploit this vulnerability.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability requires pre-existing system-level access, the potential for total system compromise necessitates prompt patching.

Analyst Recommendation

MediaTek WLAN AP drivers are critical components for network connectivity and management. Administrators should prioritize the deployment of the provided patch to all affected hardware, including those running openWRT, to prevent potential escalation of privilege attacks. Ensure that all firmware lifecycle management processes are followed to verify the integrity of the updated driver packages.

Description Summary:
A stack-based buffer overflow exists in the MediaTek WLAN AP driver due to an improper bounds check, potentially allowing local privilege escalation.

Executive Summary:
A vulnerability in the MediaTek WLAN AP driver could allow an attacker with system-level access to achieve further privilege escalation via a stack overflow.

Vulnerability Details

CVE-ID: CVE-2025-20713

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986: SDK release 7.6.7.2 and before; openWRT 19.07, 21.02

Vulnerability: This vulnerability is a stack-based buffer overflow (CWE-121) occurring within the WLAN AP driver, triggered by an incorrect bounds check. While the vector requires local access, an authenticated user with system privileges could exploit this to escalate their control over the affected device.

Business Impact

Successful exploitation of this flaw allows an attacker to escalate privileges, which could result in a full compromise of the affected network device. Given the CVSS score of 7.8, the risk is significant for embedded infrastructure and wireless access points, potentially leading to unauthorized network control or persistent access for an adversary.

Remediation Plan

Immediate Action: Apply the vendor-provided security updates or patch ID WCNCR00432661 identified in the MediaTek product security bulletin.

Proactive Monitoring: Monitor system logs for unusual kernel-level crashes or unexpected process behavior associated with the wireless driver stack.

Compensating Controls: Ensure that access to the underlying system is strictly limited to authorized personnel to prevent the initial access required for this local privilege escalation.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires a specific prerequisite of existing system-level access, which limits the attack surface to environments where an attacker has already breached lower-level security controls.

Analyst Recommendation

Organizations utilizing MediaTek hardware should verify their current SDK or firmware versions against the affected list immediately. Prioritize patching devices that serve as critical network infrastructure or gatekeepers to internal segments, as this vulnerability represents a significant risk to the integrity of the wireless management environment.

Description Summary:
A heap-based out of bounds write vulnerability exists in the MediaTek WLAN AP driver due to improper bounds checking, potentially allowing remote escalation of privilege.

Executive Summary:
A critical heap overflow vulnerability in MediaTek WLAN AP drivers permits unauthenticated, adjacent attackers to achieve remote escalation of privilege.

Vulnerability Details

CVE-ID: CVE-2025-20712

Affected Software: MediaTek WLAN AP Driver

Affected Versions: SDK release 8.3.1.1 and before; OpenWrt 21.02, 23.05 (MT6990)

Vulnerability: The flaw is a heap overflow (CWE-122) triggered by an incorrect bounds check within the wireless access point driver. An unauthenticated attacker located in the adjacent network (proximal) can trigger this condition without user interaction to gain escalated privileges.

Business Impact

The vulnerability carries a CVSS score of 8.8, reflecting its potential for severe impact on system integrity, confidentiality, and availability. Successful exploitation allows an attacker to bypass security controls and execute arbitrary code with elevated privileges, which could lead to unauthorized network access, data exfiltration, or complete compromise of the affected wireless infrastructure.

Remediation Plan

Immediate Action: Update affected devices to a patched SDK version as specified in the official MediaTek product security bulletin for October 2025 (Patch ID: WCNCR00422323).

Proactive Monitoring: Monitor wireless interface logs for anomalous traffic patterns or system crashes that may indicate exploitation attempts targeting the driver.

Compensating Controls: Restrict access to administrative management interfaces and implement network segmentation to isolate wireless access points from sensitive internal segments.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is technically significant due to the lack of required authentication and user interaction, making it a high priority for organizations utilizing the identified MediaTek chipsets.

Analyst Recommendation

Given the potential for remote escalation of privilege, security teams must prioritize patching all affected MediaTek WLAN AP drivers. Organizations should consult the vendor security bulletin immediately to identify the specific firmware or SDK updates applicable to their hardware deployments. Failure to remediate this vulnerability leaves wireless infrastructure susceptible to unauthorized access and potential system-wide compromise.

Description Summary:
A vulnerability in the MediaTek WLAN AP driver allows for an out-of-bounds write due to an incorrect bounds check, potentially enabling remote escalation of privilege without user interaction.

Executive Summary:
A critical out-of-bounds write vulnerability in MediaTek WLAN AP drivers poses a severe risk of unauthorized privilege escalation for adjacent attackers.

Vulnerability Details

CVE-ID: CVE-2025-20711

Affected Software: MediaTek WLAN AP Driver

Affected Versions: SDK release 7.6.7.2 and before; OpenWrt 19.07 and 21.02 (MT6890)

Vulnerability: The flaw is an out-of-bounds write (CWE-787) within the WLAN access point driver. An unauthenticated, adjacent attacker can trigger this condition to achieve escalation of privilege, as the vulnerability requires no user interaction and no pre-existing privileges.

Business Impact

The CVSS score of 8.8 reflects the high severity of this flaw, which allows for full compromise of confidentiality, integrity, and availability at the driver level. Successful exploitation could grant an attacker control over affected network infrastructure, leading to unauthorized access to sensitive data and the potential for lateral movement within the network.

Remediation Plan

Immediate Action: Update affected devices to the latest SDK version provided by MediaTek or apply the specific patch identified as WCNCR00422399.

Proactive Monitoring: Monitor network traffic for unusual patterns originating from adjacent devices and review system logs for anomalies related to the WLAN driver service.

Compensating Controls: Implement network segmentation to isolate devices utilizing the vulnerable MediaTek chipsets from critical systems, thereby reducing the potential blast radius of an adjacent attack.

Exploitation Status

Public Exploit Available: No — there is no confirmed public exploit in the available data.

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The technical nature of an out-of-bounds write in a driver often requires sophisticated exploit development, but the lack of required privileges makes this a high-value target for attackers on the same physical link.

Analyst Recommendation

Given the potential for privilege escalation and the lack of required user interaction, administrators should prioritize patching all devices running the affected MediaTek WLAN driver versions. If immediate patching is not feasible, restrict access to the wireless management interfaces to trusted devices only until updates can be deployed.

Description Summary:
An integer overflow in the MediaTek WLAN AP driver allows for an out of bounds write, potentially leading to remote privilege escalation without requiring user interaction or authentication.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek WLAN drivers enables unauthenticated remote escalation of privilege, posing a severe risk to affected wireless infrastructure.

Vulnerability Details

CVE-ID: CVE-2025-20710

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MediaTek MT6890, MT7915, MT7916, MT7981, MT7986: SDK release 7.6.7.2 and before, OpenWrt 19.07, 21.02 (MT6890)

Vulnerability: The flaw is caused by an integer overflow (CWE-190) in the WLAN access point driver, which results in an out of bounds memory write. An unauthenticated attacker located within proximity of the wireless network can trigger this condition to achieve full system compromise.

Business Impact

The potential for unauthenticated remote privilege escalation represents a significant security risk to enterprise and consumer networking equipment. Given the high CVSS score of 8.8, successful exploitation could lead to total system compromise, unauthorized access to sensitive network traffic, and potential lateral movement within the environment.

Remediation Plan

Immediate Action: Update the affected device firmware or SDK to the version specified in the MediaTek product security bulletin, specifically ensuring the application of patch ID WCNCR00418785.

Proactive Monitoring: Monitor wireless infrastructure logs for unusual management frame traffic or unexpected device reboots that may indicate memory corruption attempts.

Compensating Controls: If immediate patching is not feasible, implement network segmentation to isolate vulnerable access points and restrict management interface access to trusted administrative segments only.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While currently unexploited in the wild, the lack of authentication required to trigger the overflow makes this a high-priority target for research and potential weaponization.

Analyst Recommendation

Due to the severity of this vulnerability and the potential for unauthenticated remote execution, organizations using MediaTek wireless chipsets must prioritize the deployment of the vendor-supplied firmware updates. Administrators should consult the official MediaTek product security bulletin to verify specific patch availability for their hardware models and perform rolling updates to minimize operational impact.

Description Summary:
A buffer overflow vulnerability in the MediaTek WLAN AP driver allows an unauthenticated, adjacent attacker to achieve remote code execution through an out of bounds write.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek WLAN drivers permits unauthenticated, adjacent attackers to escalate privileges and potentially execute arbitrary code.

Vulnerability Details

CVE-ID: CVE-2025-20709

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MediaTek MT6890, MT7915, MT7916, MT7981, MT7986 SDK release 7.6.7.2 and before; OpenWrt 19.07, 21.02 (MT6890)

Vulnerability: The flaw is a classic buffer overflow (CWE-120) occurring within the WLAN access point driver due to improper bounds checking. An unauthenticated attacker located in the adjacent network proximity can trigger this condition to gain elevated privileges without user interaction.

Business Impact

The vulnerability carries a CVSS score of 8.8, reflecting its high severity and potential for total system compromise. Successful exploitation allows an attacker to gain unauthorized control over affected networking hardware, posing a severe risk of data interception, lateral movement into protected network segments, and long term persistence on the infrastructure.

Remediation Plan

Immediate Action: Consult the official MediaTek product security bulletin for October 2025 to identify and apply the specific firmware update or SDK patch (WCNCR00415809) corresponding to your hardware model.

Proactive Monitoring: Monitor network traffic for unusual management frames or anomalous behavior originating from adjacent devices, and review system logs for signs of driver level crashes or unexpected process execution.

Compensating Controls: Restrict access to administrative interfaces and disable unnecessary wireless features that utilize the vulnerable driver components until patches can be successfully deployed.

Exploitation Status

Public Exploit Available: No — no confirmed public exploit exists.

Analyst Notes: As of October 15, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While exploitation requires adjacent network proximity, the lack of authentication requirements makes this a significant target for attackers positioned within wireless range of the target infrastructure.

Analyst Recommendation

Given the high CVSS score and the nature of the vulnerability, organizations utilizing affected MediaTek hardware must prioritize the identification of vulnerable SDK versions. Apply the manufacturer provided patches immediately upon release to remediate the buffer overflow risk and prevent potential remote escalation of privilege by adjacent attackers.

Description Summary:
A MediaTek modem vulnerability allows remote escalation of privilege via an out-of-bounds write when a device connects to a rogue base station.

Executive Summary:
An out-of-bounds write vulnerability in MediaTek modems, tracked as CVE-2025-20708, permits unauthenticated remote escalation of privilege without user interaction.

Vulnerability Details

CVE-ID: CVE-2025-20708

Affected Software: MediaTek Modem

Affected Versions: MT2735, MT2737, MT6813, MT6815, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8673, MT8675, MT8676, MT8678, MT8791, MT8791T, MT8792, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 (Firmware versions NR15, NR16, NR17, NR17R)

Vulnerability: The flaw is an out-of-bounds write (CWE-787) occurring within the modem firmware due to an incorrect bounds check. This allows an attacker operating a rogue base station to achieve remote escalation of privilege against unauthenticated devices.

Business Impact

A successful exploit grants an attacker elevated privileges on the mobile device, potentially leading to full system compromise, data exfiltration, or persistent unauthorized access. With a CVSS score of 8.1, the high severity reflects the ability of an attacker to bypass standard security controls without requiring user interaction, posing a significant risk to organizational mobility security.

Remediation Plan

Immediate Action: Apply the vendor-provided firmware update (Patch ID: MOLY01123853) through official OEM update channels as soon as the manufacturer makes it available for your specific device.

Proactive Monitoring: Monitor device security logs for unusual modem behavior or unexpected network connectivity patterns that may indicate interaction with malicious base stations.

Compensating Controls: While specific network-level controls are difficult for mobile devices, users should avoid connecting to untrusted or public Wi-Fi and cellular networks in high-risk environments.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of September 2, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's requirement for a proximity-based rogue base station limits the attack surface, but the potential for remote escalation remains a severe threat for mobile fleets.

Analyst Recommendation

Given the critical nature of modem-level vulnerabilities and the potential for privilege escalation, administrators should prioritize the deployment of security patches released by their mobile device vendors. Ensure that all devices utilizing the affected MediaTek chipsets are updated to the latest firmware version to mitigate the risk of unauthorized access via rogue base station attacks.

Description Summary:
A use after free memory corruption vulnerability in the MediaTek mbrain component allows for local privilege escalation.

Executive Summary:
A memory corruption vulnerability in MediaTek mbrain allows a local attacker to achieve privilege escalation on devices running Android 14.0 or 15.0.

Vulnerability Details

CVE-ID: CVE-2025-20706

Affected Software: MediaTek mbrain

Affected Versions: MT6899, MT6989, MT6991, MT8676, MT8678 running Android 14.0 or 15.0

Vulnerability: This is a use after free vulnerability (CWE-416) within the mbrain component. It allows a local attacker who has already obtained System level privileges to escalate those privileges further, and user interaction is not required for successful exploitation.

Business Impact

The potential for local privilege escalation poses a significant risk to the integrity and confidentiality of the affected mobile devices. By gaining elevated control, an attacker could bypass security boundaries, access sensitive user data, or install persistent malicious applications. With a CVSS score of 7.8, this flaw is categorized as High severity, reflecting the impact on system security once the attacker has established an initial foothold.

Remediation Plan

Immediate Action: Apply the official vendor security update provided by MediaTek (Patch ID: ALPS09924624) as soon as it is made available through your device manufacturer or carrier.

Proactive Monitoring: Monitor for unusual system behavior or unauthorized processes that may indicate an attempt to exploit local system services.

Compensating Controls: Ensure that all applications are installed from trusted sources and that security features like Google Play Protect remain enabled to detect malicious activity.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of September 2, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires the attacker to have already achieved System level privileges, which limits the attack surface significantly.

Analyst Recommendation

While this vulnerability requires a prior level of system access, the risk of privilege escalation should not be underestimated in an enterprise environment. IT security teams should prioritize the deployment of the vendor patch to all managed devices to ensure that system integrity remains uncompromised.

Description Summary:
A use after free vulnerability in the monitor_hang function of various MediaTek chipsets may allow for local privilege escalation.

Executive Summary:
A critical use after free vulnerability in multiple MediaTek chipsets could allow an attacker to achieve local escalation of privilege.

Vulnerability Details

CVE-ID: CVE-2025-20705

Affected Software: MediaTek MT-series Chipsets

Affected Versions: Android 13.0, 14.0, 15.0, 16.0; openWRT 19.07, 21.02; Yocto 2.6

Vulnerability: This vulnerability involves a use after free flaw within the monitor_hang function, which can be triggered by an attacker who has already obtained system-level privileges to escalate their access further. The vulnerability does not require user interaction for successful exploitation.

Business Impact

The potential for local privilege escalation poses a significant risk to device integrity and security. Given the CVSS score of 7.8, this vulnerability is categorized as high severity, as it allows a malicious actor to gain unauthorized control over core system functions if they have already established an initial foothold. Such access could lead to complete compromise of the underlying operating system, sensitive data exfiltration, or persistence of malicious code on the affected hardware.

Remediation Plan

Immediate Action: Apply the vendor-provided security update, identified by Patch ID ALPS09989078, as soon as it is made available by your device manufacturer or firmware provider.

Proactive Monitoring: Monitor system logs for unexpected service crashes or anomalies related to the monitor_hang function, which may indicate attempted exploitation.

Compensating Controls: Ensure that restricted system-level access is tightly controlled, and implement robust endpoint protection to prevent the initial compromise required to trigger this local escalation.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of September 2, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the flaw requires the attacker to already possess system privileges, the resulting impact is significant, warranting immediate attention upon the release of firmware patches.

Analyst Recommendation

The severity of this vulnerability necessitates prompt action once patches are released by the relevant device vendors. Organizations and individual users should verify their current firmware versions against the vendor security bulletin and prioritize the application of the specified patch to eliminate the risk of privilege escalation.

Description Summary:
A missing bounds check in the MediaTek modem firmware allows for an out of bounds write, potentially leading to remote privilege escalation when connected to a rogue base station.

Executive Summary:
A critical out of bounds write vulnerability in MediaTek modem firmware could allow an attacker to achieve remote privilege escalation via a rogue base station.

Vulnerability Details

CVE-ID: CVE-2025-20704

Affected Software: MediaTek Modem

Affected Versions: MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883 (Modem NR17, NR17R)

Vulnerability: This vulnerability is an out of bounds write (CWE-787) occurring within the modem firmware. An unauthenticated attacker can trigger this flaw if a device connects to a malicious base station, requiring user interaction to facilitate the connection.

Business Impact

The potential for remote privilege escalation poses a severe threat to the integrity and confidentiality of mobile devices utilizing the affected MediaTek chipsets. With a CVSS score of 8.8, this vulnerability carries a high risk of total system compromise, potentially allowing an attacker to gain unauthorized control over device functions or sensitive user data.

Remediation Plan

Immediate Action: Apply the vendor security update associated with Patch ID MOLY01516959 provided in the September 2025 MediaTek security bulletin.

Proactive Monitoring: Monitor device connectivity logs for unusual network handovers or frequent disconnections that might indicate interaction with unauthorized base station equipment.

Compensating Controls: While standard WAF solutions do not apply to modem firmware, users should exercise caution when connecting to untrusted or public cellular networks in high-risk environments.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of September 2, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is technically significant because it bridges the gap between physical proximity to a rogue radio source and full system-level privilege escalation.

Analyst Recommendation

Given the potential for remote privilege escalation and the critical nature of modem firmware, organizations should prioritize the deployment of the MOLY01516959 patch. Ensure all mobile device management policies include verification of security patch levels to mitigate the risk of exploitation by rogue base stations.

Description Summary:
An out of bounds read vulnerability in the MediaTek modem firmware allows for a remote denial of service when connected to a rogue base station.

Executive Summary:
A critical out of bounds read vulnerability in multiple MediaTek modem chipsets allows an attacker to trigger a remote denial of service condition without user interaction.

Vulnerability Details

CVE-ID: CVE-2025-20703

Affected Software: MediaTek Modem

Affected Versions: See metadata for specific chipset list and modem firmware versions (NR15 through NR17R).

Vulnerability: This vulnerability is an out of bounds read (CWE-125) caused by an incorrect bounds check within the modem firmware. An unauthenticated attacker can trigger this flaw by enticing a user device to connect to a malicious or rogue base station, resulting in a denial of service.

Business Impact

Successful exploitation of this vulnerability results in a denial of service, rendering the device modem unresponsive. Given the CVSS score of 7.5, this high severity flaw poses a significant operational risk to mobile communications, potentially causing widespread connectivity loss for affected devices. Organizations relying on these chipsets for critical field communications or mobile operations may experience significant downtime and loss of service availability.

Remediation Plan

Immediate Action: Apply the vendor-provided firmware update (Patch ID: MOLY01599794) as soon as it is made available by the device manufacturer or carrier.

Proactive Monitoring: Monitor device logs for unexpected modem resets or connectivity drops that occur in the absence of known signal issues.

Compensating Controls: While direct mitigation is limited for modem firmware, ensure devices are configured to prefer trusted networks and restrict roaming capabilities where possible to reduce exposure to unauthorized base stations.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of September 2, 2025, there is no public information indicating active exploitation or a public proof of concept for this vulnerability. While the attack requires the target to connect to a rogue base station, the lack of required user interaction makes the attack vector dangerous in environments where users may roam onto hostile cellular networks.

Analyst Recommendation

Organizations should prioritize the deployment of this firmware update across all affected mobile hardware. Because this vulnerability targets the low level modem firmware, standard software patching processes may not suffice, and coordination with mobile service providers or hardware vendors is essential to ensure the fix is applied.

Description Summary:
A heap-based out of bounds write vulnerability exists in the MediaTek WLAN AP driver, potentially allowing remote code execution via adjacent network access without user interaction.

Executive Summary:
A heap overflow vulnerability in MediaTek WLAN AP drivers poses a significant risk of remote code execution for adjacent network attackers.

Vulnerability Details

CVE-ID: CVE-2025-20686

Affected Software: MediaTek WLAN AP Driver

Affected Versions: SDK release 7.6.7.2 and before; OpenWrt 19.07, 21.02 (MT6890)

Vulnerability: The vulnerability is a heap overflow (CWE-122) caused by an incorrect bounds check within the WLAN access point driver. An unauthenticated attacker located on the adjacent network can trigger this flaw to achieve remote code execution without requiring user interaction.

Business Impact

The ability for an unauthenticated attacker to execute arbitrary code on networking hardware presents a critical risk to organizational infrastructure. With a CVSS score of 8.8, this flaw could facilitate full system compromise, lateral movement within the local network, or the interception of sensitive wireless traffic. Such an event would likely result in significant service downtime and potential data exfiltration.

Remediation Plan

Immediate Action: Update affected MediaTek SDKs to a version later than 7.6.7.2 or apply the vendor-provided patch WCNCR00415570.

Proactive Monitoring: Monitor wireless network traffic and device logs for anomalous patterns or unexpected crashes in the WLAN driver service that may indicate exploitation attempts.

Compensating Controls: Restrict access to management interfaces and isolate vulnerable wireless infrastructure on dedicated VLANs to minimize the reach of potential adjacent attackers.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 9, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's inherent exploitability is high due to the lack of required authentication or user interaction for remote code execution.

Analyst Recommendation

Given the severity of potential remote code execution on core networking components, immediate patching is required. Security teams should verify current SDK versions across all deployed MediaTek hardware and prioritize the application of the vendor-supplied fix to eliminate the heap overflow vector.

Description Summary:
A heap-based out-of-bounds write vulnerability exists in the MediaTek WLAN AP driver due to an incorrect bounds check, allowing for remote code execution.

Executive Summary:
A critical heap overflow vulnerability in MediaTek WLAN drivers allows unauthenticated, adjacent attackers to achieve remote code execution.

Vulnerability Details

CVE-ID: CVE-2025-20685

Affected Software: MediaTek WLAN AP Driver

Affected Versions: MT6890, MT7915, MT7916, MT7981, MT7986: SDK release 7.6.7.2 and before / OpenWrt 19.07, 21.02 (MT6890)

Vulnerability: This is a heap overflow (CWE-122) triggered by an incorrect bounds check in the WLAN access point driver. The flaw allows an unauthenticated, adjacent attacker to execute arbitrary code without requiring user interaction.

Business Impact

The ability for an attacker to achieve remote code execution on wireless infrastructure poses a severe risk to network integrity and data confidentiality. With a CVSS score of 8.8, this vulnerability represents a high-severity threat that could lead to full system compromise, lateral movement across the internal network, and persistent unauthorized access to sensitive communications.

Remediation Plan

Immediate Action: Organizations using affected MediaTek chipsets must apply the security updates provided in the July 2025 MediaTek product security bulletin, specifically referencing Patch ID WCNCR00416226.

Proactive Monitoring: Security teams should monitor wireless access point traffic for anomalous packets or unexpected crash events that might indicate exploitation attempts.

Compensating Controls: Implement strict network segmentation to isolate vulnerable wireless infrastructure from core business assets, limiting the potential blast radius of a successful compromise.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of July 10, 2025, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's nature as a memory corruption issue in a low-level driver makes it highly dangerous if an exploit is developed.

Analyst Recommendation

Given the potential for remote code execution on critical networking hardware, this vulnerability should be prioritized for immediate remediation. Administrators must verify the SDK or firmware versions currently in production against the vendor advisory and deploy the necessary patches to prevent unauthorized access to the network layer.