Description Summary:
A flaw in ArgoCD Image Updater within Red Hat OpenShift GitOps allows attackers with limited permissions to bypass namespace boundaries and trigger unauthorized image updates.

Executive Summary:
A critical privilege escalation vulnerability in Red Hat OpenShift GitOps allows attackers to bypass namespace isolation, potentially compromising the integrity of applications across a multi-tenant environment.

Vulnerability Details

CVE-ID: CVE-2026-6388

Affected Software: Red Hat OpenShift GitOps (ArgoCD Image Updater)

Affected Versions: Red Hat OpenShift GitOps

Vulnerability: The vulnerability (CWE-1220) stems from insufficient granularity in access control. An authenticated attacker with permissions to manage ImageUpdater resources can manipulate configurations to perform unauthorized actions on applications owned by other tenants, leading to cross-namespace privilege escalation.

Business Impact

With a CVSS score of 9.1, this vulnerability presents a significant risk to the integrity of containerized environments. In a multi-tenant setup, this flaw allows for the unauthorized deployment of images, which could be leveraged to inject malicious code into production applications, resulting in supply chain compromise or service disruption.

Remediation Plan

Immediate Action: Apply the relevant security updates provided by Red Hat as detailed in the official security advisory (BZ#2458766).

Proactive Monitoring: Review audit logs for ArgoCD and OpenShift to detect abnormal ImageUpdater resource modifications or unauthorized cross-namespace requests.

Compensating Controls: Limit the ability of users to create or modify ImageUpdater resources to only highly trusted administrators until the patch can be deployed.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of April 16, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The complexity of the attack requires specific environmental configuration, but the impact of a successful breach is high.

Analyst Recommendation

Organizations utilizing Red Hat OpenShift GitOps should treat this vulnerability with high urgency. Administrators must review their current RBAC policies to restrict access to ImageUpdater resources and verify that the latest patches have been applied to mitigate the risk of cross-tenant exploitation.

Description Summary:
A race condition in the Linux kernel USB MCTP subsystem allows local users to cause high impacts on confidentiality, integrity, and availability.

Executive Summary:
A race condition vulnerability in the Linux kernel USB MCTP subsystem allows local authenticated attackers to achieve high levels of system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63874

Affected Software: Linux Kernel

Affected Versions: Versions 0791c0327a6e4e7691d6fc5ad334c215de04dcc9 up to (excluding) 9c46f3ee1837f6881cb99a52ffecb2760f11dc73, d90feaa3f74bea8dafb6494631a194c70e547d94, 54665dce982689e2fd99b32e9a0dcc204fda8a51, and version 6.15

Vulnerability: This flaw is a race condition between USB Request Block (URB) completion and rx_retry cancellation in the MCTP network driver, requiring local low-privileged access with no user interaction.

Business Impact

A successful exploit of this race condition can lead to severe system instability, kernel panics, or complete system compromise through privilege escalation. Given the CVSS score of 7.8, this high-severity vulnerability poses a substantial risk to environments where untrusted local users have shell access, potentially resulting in unauthorized data access or denial of service.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.36, 7.0.13, or later where the race condition sequencing has been resolved.

Proactive Monitoring: Monitor system logs for unexpected kernel crashes, segmentation faults, or anomalous USB network driver behavior.

Compensating Controls: Restrict local shell access to trusted personnel only and enforce strict least-privilege principles to mitigate local attack vectors.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires local access and careful timing to trigger the race condition reliably.

Analyst Recommendation

Administrators must prioritize updating the Linux kernel across all vulnerable systems to patch the race condition in the USB MCTP driver. Applying the latest stable kernel builds is essential to prevent potential local privilege escalation and maintain system integrity.

Description Summary:
A memory handling flaw in the Linux kernel 6LoWPAN implementation allows local authenticated attackers to cause a system crash or execute arbitrary code via non-IPv6 packets.

Executive Summary:
A local vulnerability in the Linux kernel 6LoWPAN subsystem allows attackers with low privileges to compromise system confidentiality, integrity, and availability.

Vulnerability Details

CVE-ID: CVE-2026-63870

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions up to excluding af07fffbd53ddc3ec3c2a4ca914f27899fa89bca, 3150e6d3223dfc356308125cabf9c34169842d2a, 8da95cb6ad7d656c871e776a9c7b77e894d6d89c, 1a827b95e62b4cbe851ae7cc9c961cdfa769cca4, c1819c8defa235c7beda859bc185b1c429a55ecd, 285b0842f2e01c3edf805f1fd64da11d9b7f6b4c, 87172cc8dc49aaf54407a31edffb0232f8cb93ab, 3a5f3f7aff18bcc36a57839cf50cf0cc8de707f3

Vulnerability: This is an improper handling of uninitialized memory vulnerability within the ieee802154 6lowpan transmission logic, requiring low local privileges and no user interaction.

Business Impact

A successful exploit allows a local authenticated user to compromise the affected host entirely, potentially leading to unauthorized data access, system modification, or complete denial of service. While the CVSS score is 7.8, representing a high-severity local threat, the potential for arbitrary code execution and system-wide impact makes timely remediation critical for multi-tenant or shared environments.

Remediation Plan

Immediate Action: Update the Linux kernel to the latest patched stable versions, such as 5.10.259, 5.15.210, 6.1.176, 6.6.143, or later.

Proactive Monitoring: Monitor system logs for kernel panics, segmentation faults, or unauthorized local execution of custom network traffic generators.

Compensating Controls: Restrict local shell access and apply strict user permission boundaries to prevent unauthorized users from interacting with 6LoWPAN network interfaces.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw exists due to uninitialized data structures when processing non-IPv6 packets over 6LoWPAN interfaces.

Analyst Recommendation

Administrators managing systems utilizing 6LoWPAN functionality must prioritize applying the latest kernel updates. Because this vulnerability requires local access, securing user privileges and enforcing principle of least privilege serves as a strong secondary defense while patches are deployed.

Description Summary:
A TOCTOU race condition in the Linux kernel MPTCP output path can lead to integrity issues or denial of service when computing receive windows.

Executive Summary:
A time-of-check to time-of-use race condition in the Linux kernel MPTCP implementation poses a risk of system instability or unauthorized integrity impacts.

Vulnerability Details

CVE-ID: CVE-2026-63867

Affected Software: Linux Kernel

Affected Versions: Versions prior to the stable releases 5.15.210, 6.1.176, 6.6.143, and 6.12.94.

Vulnerability: The MPTCP output path performs lockless access to sequence numbers, resulting in a TOCTOU (Time-of-Check to Time-of-Use) race condition that can affect the data acknowledgment process.

Business Impact

This vulnerability can lead to service degradation or denial of service, impacting system availability for critical network-heavy applications. Given the CVSS score of 8.2, the potential for network-level disruption necessitates prompt kernel updates to ensure system reliability and data integrity.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.15.210, 6.1.176, 6.6.143, 6.12.94, or later depending on your active distribution branch.

Proactive Monitoring: Monitor system logs for kernel panics or MPTCP-related error messages that may indicate instability caused by the race condition.

Compensating Controls: Limit exposure to untrusted network traffic and ensure that kernel hardening features are enabled to mitigate potential exploitation attempts.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The race condition is complex and likely requires specific network conditions to trigger effectively.

Analyst Recommendation

Linux kernel maintainers have addressed this through stable patches. Organizations should include these kernel updates in their standard patch management cycle to maintain system stability and prevent potential network-based exploitation.

Description Summary:
A memory management flaw exists in the Linux kernel mt7996 Wi-Fi driver where failure to clear the WCID pointer during station link deinitialization can lead to memory corruption or instability.

Executive Summary:
A high-severity memory management vulnerability in the Linux kernel mt7996 Wi-Fi driver may allow a local attacker to cause a system crash or potentially execute arbitrary code.

Vulnerability Details

CVE-ID: CVE-2026-63866

Affected Software: Linux Kernel

Affected Versions: Linux 6.15 and prior versions incorporating commit dd82a9e02c054052b5899872c1f32805428f6131

Vulnerability: This is a memory management vulnerability involving a failure to clear the Wireless Client Identifier (WCID) pointer during the mt7996_mac_sta_deinit_link routine. It requires an attacker to have adjacent network access to trigger the flaw, as indicated by the CVSS vector AV:A.

Business Impact

Successful exploitation could result in a kernel panic, leading to denial of service for affected wireless infrastructure. Given the CVSS score of 8.8, the potential for memory corruption introduces a risk of unauthorized system state manipulation, which could disrupt critical business operations reliant on wireless connectivity.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.33, 7.0.10, or 7.1 and later, where this issue has been resolved.

Proactive Monitoring: Monitor system logs for kernel oops or unexpected service restarts related to the mt76 or mt7996 wireless drivers.

Compensating Controls: If patching is not immediately feasible, restrict access to the affected wireless network segments and implement robust physical or logical access controls to limit the exposure of the wireless interface.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw's exploitability is limited by the requirement for adjacent network access.

Analyst Recommendation

This vulnerability represents a significant risk to the stability and security of systems utilizing the mt7996 wireless chipset. Administrators should prioritize the deployment of the provided kernel patches to eliminate the potential for memory-based exploitation.

Description Summary:
The Linux kernel improperly allows certain LSM sleepable hooks to be used from contexts that do not support sleep, leading to potential kernel instability or security bypasses.

Executive Summary:
Improper use of LSM sleepable hooks in the Linux kernel poses a high risk of system instability and potential security policy bypass.

Vulnerability Details

CVE-ID: CVE-2026-63865

Affected Software: Linux Kernel

Affected Versions: Versions prior to 5.15.209, 6.1.175, 6.6.141, and 6.12.91.

Vulnerability: This issue stems from the incorrect use of bpf_lsm_task_to_inode and bpf_lsm_inet_conn_established in sleepable LSM programs. These hooks are called from restricted contexts, such as rcu_read_lock or softirq context, where sleeping is forbidden, leading to invalid kernel operations.

Business Impact

Exploitation of this vulnerability allows a local attacker with low privileges to trigger kernel-level errors, potentially leading to a system crash or bypassing security policies enforced by LSMs. A CVSS score of 8.8 reflects the high danger posed by flaws that interfere with kernel security enforcement and system stability.

Remediation Plan

Immediate Action: Update the kernel to the patched versions (5.15.209, 6.1.175, 6.6.141, 6.12.91) or the latest version supplied by your distribution.

Proactive Monitoring: Watch for kernel panic events or unexpected system reboots that coincide with BPF program execution or LSM policy updates.

Compensating Controls: Audit and restrict the loading of eBPF programs, particularly those utilizing LSM hooks, until the kernel can be updated to a secure version.

Exploitation Status

Public Exploit Available: exploit_available (unknown)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The complexity of triggering this via BPF makes it a targeted attack vector.

Analyst Recommendation

This vulnerability highlights the risks associated with eBPF and LSM integration in the kernel. System administrators should prioritize updating to the specified versions to ensure that security hooks operate within their intended constraints and to maintain overall platform security.

Description Summary:
A missing error check in the Linux kernel BPF subsystem allows for potential memory corruption or instability during tail call processing.

Executive Summary:
A vulnerability in the Linux kernel BPF subsystem could allow an attacker to trigger memory corruption and system instability.

Vulnerability Details

CVE-ID: CVE-2026-63864

Affected Software: Linux Kernel

Affected Versions: Linux kernels e40f5a6bf88a781d5f81bc6b8aab9ac31d8c98dd up to 6.19

Vulnerability: This issue stems from a failure to propagate the return value of the visit_tailcall_insn function within the BPF subsystem, which can lead to incorrect stack liveness tracking. This is an unauthenticated local vulnerability.

Business Impact

Successful exploitation of this flaw can result in system crashes or potential escalation of privileges, leading to unauthorized access to sensitive data or complete system compromise. Given the CVSS score of 8.4, this vulnerability represents a high risk to infrastructure stability and data integrity.

Remediation Plan

Immediate Action: Update the Linux kernel to version 7.0.10, 7.1, or later, as provided by your distribution vendor.

Proactive Monitoring: Monitor system logs for kernel panics, segmentation faults, or unusual BPF program execution patterns that may indicate exploitation attempts.

Compensating Controls: Restrict access to BPF functionality to authorized users only, specifically limiting the capability to load BPF programs, which is often controlled via the CAP_BPF or CAP_SYS_ADMIN capabilities.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is primarily an implementation error in memory management logic.

Analyst Recommendation

The severity of this kernel vulnerability necessitates prompt action. Administrators should prioritize patching their Linux environments to the specified fixed versions to prevent potential local exploitation.

Description Summary:
An unbalanced lock usage in the Linux kernel drm/gpusvm component, specifically within the drm_gpusvm_scan_mm function, can lead to denial of service or potential privilege escalation.

Executive Summary:
An unbalanced lock in the Linux kernel GPU SVM module creates a critical risk of denial of service or system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63863

Affected Software: Linux Kernel

Affected Versions: Linux 7.0 versions prior to 7.0.10.

Vulnerability: This vulnerability involves an unbalanced lock and unlock sequence regarding the gpusvm notifier lock. The issue allows a local authenticated user (PR:L) to trigger a state where the kernel may hang or enter an inconsistent state, potentially leading to unauthorized memory access or system failure.

Business Impact

The ability for a local user to cause a kernel-level failure or memory inconsistency carries a high risk of service disruption and potential elevation of privilege. With a CVSS score of 8.8, this flaw necessitates urgent attention, particularly in multi-user or containerized environments where local access is granted to untrusted entities.

Remediation Plan

Immediate Action: Apply the latest kernel security updates provided by your Linux distribution, specifically ensuring the kernel is updated to at least version 7.0.10.

Proactive Monitoring: Review system audit logs for repeated segmentation faults or kernel warnings associated with GPU drivers or memory management operations.

Compensating Controls: Restrict local access to the system for untrusted users to prevent the initiation of malicious processes that could leverage this vulnerability.

Exploitation Status

Public Exploit Available: exploit_available (unknown)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement for local access and low privileges means the vulnerability is most dangerous in environments with shared local access.

Analyst Recommendation

Maintaining kernel integrity is essential for system security. Given the high severity of this lock-related flaw, organizations should move to implement the relevant patches as soon as they are made available by their upstream kernel maintainers or distribution vendors.

Description Summary:
A vulnerability in the Linux kernel RDMA core component involves improper handling of NLA_STRING attributes, potentially leading to memory issues when checking for null terminators.

Executive Summary:
A high-severity vulnerability in the Linux kernel RDMA subsystem could allow for local privilege escalation or system instability due to improper string handling.

Vulnerability Details

CVE-ID: CVE-2026-63860

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions prior to 5.10.258, 5.15.209, 6.1.175, and 6.6.141

Vulnerability: This is a memory handling flaw where the RDMA core incorrectly evaluates attributes as C-strings without verifying the presence of a null terminator. The vulnerability is exploitable by local, unauthenticated users.

Business Impact

The vulnerability carries a CVSS score of 8.4, reflecting the potential for complete system compromise. Successful exploitation could lead to unauthorized access, modification of sensitive data, or denial of service, significantly impacting system integrity and operational availability.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.10.258, 5.15.209, 6.1.175, 6.6.141, or later versions where the fix has been backported.

Proactive Monitoring: Monitor system logs for kernel panics, segmentation faults, or unusual RDMA subsystem activity that may indicate an exploitation attempt.

Compensating Controls: Restrict access to RDMA-enabled interfaces and ensure that local user privileges are strictly managed to minimize the attack surface.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherent to the kernel's memory management logic during string processing.

Analyst Recommendation

Given the high CVSS score and the critical nature of the Linux kernel, immediate patching is required. Administrators should prioritize updating systems running vulnerable kernels to the specified fixed versions to prevent potential local exploitation.

Description Summary:
A vulnerability in the Linux kernel amdgpu VCN driver allows local attackers with low privileges to trigger high impact security consequences due to improper handling of 64-bit user fence writes.

Executive Summary:
A high-severity vulnerability in the Linux kernel amdgpu VCN driver allows authenticated local users to achieve full system compromise through improper user fence write validation.

Vulnerability Details

CVE-ID: CVE-2026-63856

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions 1b61de45dfaff00b627e47349a019658e39268b9 up to (excluding) f264019be80de79f84f464846451445923bffea0, 5e777bc4cbe928ac0fd95e368fee1540f2ce4db2, ac06ce5cac9e711281585d09d00c6efcd9b86396, c71aecae98e42dcf2baf462df50b3a2cf1a93fe4, and 8d80b293b41fcb5e9396db93e788b0f4ebcbafb7

Vulnerability: This is an improper control flaw within the drm/amdgpu/vcn component where VCN encoder and decoder rings fail to support 64-bit user fence writes. An authenticated local attacker with low privileges can exploit this via command submission to compromise system confidentiality, integrity, and availability.

Business Impact

A successful exploit of this vulnerability can grant an attacker full control over the affected host operating system, leading to unauthorized data access, system disruption, and potential lateral movement across the network. The CVSS score of 7.8 indicates a high severity rating, driven by the ability of a locally authenticated user to achieve complete compromise of the targeted environment despite requiring local access.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later where the upstream fix has been integrated.

Proactive Monitoring: Monitor system audit logs for unauthorized command submission attempts or unexpected kernel panics related to the amdgpu driver.

Compensating Controls: Restrict local shell access and ensure principle of least privilege is strictly enforced to prevent untrusted users from executing arbitrary commands or accessing the graphics subsystem.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires local system access and low privileges to execute, limiting the immediate threat vector primarily to environments with untrusted local users.

Analyst Recommendation

Security teams must prioritize updating affected Linux kernel deployments to the patched versions as soon as possible to neutralize the local privilege escalation and system compromise risk. Because the vulnerability targets core kernel graphics subsystems, applying the official vendor patch remains the definitive mitigation strategy.

Description Summary:
A vulnerability in the Linux kernel AMD GPU VCN driver allows local authenticated attackers to achieve high impact confidentiality, integrity, and availability.

Executive Summary:
A local privilege escalation vulnerability exists in the Linux kernel amdgpu VCN driver, which could allow a low-privileged user to compromise system confidentiality, integrity, and availability.

Vulnerability Details

CVE-ID: CVE-2026-63855

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions 28c17d72072b7ce5cc13a527dcbfc045cc995e7d up to excluding 2c6fb056567efb49f8674108b86088a1cfaa86d0, 8f0ea4524dc71c6c9ec97f2711f46e12f624140f, 602d4c5872b25ddd4d82fb2025efb9a05b187bb3, 5a3c6f76cab164a5d803084908d7050f649ab7f9, and 4f317863a3ab212a027d8c8c3cc3af4e3fb95704

Vulnerability: This is an improper control flaw within the AMD GPU VCN encoder and decoder rings, which fail to support 64-bit user fence writes and require low privileges with local access to trigger.

Business Impact

A successful exploit of this vulnerability could allow an attacker with local system access to compromise the entire operating system, leading to unauthorized data access, system modification, or denial of service. The CVSS score of 7.8 reflects a high severity threat, indicating that while local access is required, the potential damage to system confidentiality, integrity, and availability is severe.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for unauthorized command submissions or abnormal kernel errors related to the amdgpu driver.

Compensating Controls: Restrict local shell access and enforce strict the Principle of Least Privilege to limit potential attackers from obtaining the initial access required to trigger the flaw.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability.

Analyst Recommendation

Given the high CVSS score and the potential for complete system compromise, administrators must prioritize applying the latest kernel patches. Immediate updates to the affected Linux kernel branches will effectively eliminate the underlying defect and protect the environment from local exploitation vectors.

Description Summary:
A vulnerability in the Linux kernel AMDGPU VCN driver allows local users to achieve high privileges and impact system confidentiality, integrity, and availability.

Executive Summary:
A high-severity vulnerability in the Linux kernel AMDGPU driver allows local authenticated attackers to achieve complete system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63854

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions cf14826cdfb5c9fe10f98210d040b9d7486c381d up to e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c, and corresponding versions in stable branches.

Vulnerability: The vulnerability exists in the VCN encoder and decoder rings for AMDGPU due to improper handling of 64-bit user fence writes, requiring low privileges and local access with no user interaction.

Business Impact

Successful exploitation of this flaw can result in a complete breach of confidentiality, integrity, and availability, granting attackers full control over the affected host operating system. With a CVSS score of 7.8, the vulnerability presents a severe risk for systems utilizing vulnerable AMD graphics drivers, potentially leading to unauthorized data access, system corruption, or denial of service.

Remediation Plan

Immediate Action: Update the Linux kernel to the patched stable versions, specifically 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later, as provided by the vendor repository.

Proactive Monitoring: Monitor system logs for kernel panics, unauthorized local command execution, and anomalies related to AMDGPU driver initialization or command submission failures.

Compensating Controls: Restrict local shell access and ensure strict user privilege management to prevent untrusted local users from executing arbitrary code or interacting directly with hardware driver interfaces.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from improper validation of user fences in the AMDGPU VCN subsystem, allowing local privilege escalation if left unpatched.

Analyst Recommendation

Administrators managing systems with affected AMDGPU hardware configurations must apply the latest kernel updates immediately to eliminate local privilege escalation vectors. Prioritize testing and deploying the official stable patches across all vulnerable Linux kernel distributions to maintain baseline security and prevent potential system-level compromise.

Description Summary:
A vulnerability in the Linux kernel amdgpu VCN driver fails to set no_user_fence for VCN v4.0 encoder rings, allowing local users to achieve high privileges.

Executive Summary:
A local privilege escalation vulnerability in the Linux kernel amdgpu VCN driver allows authenticated low-privileged users to achieve high impact across confidentiality, integrity, and availability.

Vulnerability Details

CVE-ID: CVE-2026-63853

Affected Software: Linux Kernel

Affected Versions: Linux 8da1170a16e4d4b49fa07d1f75ad480847ff7eca up to (excluding) 1286b6872de0aee1feeeaa6dbac86369806de9a5, 8da1170a16e4d4b49fa07d1f75ad480847ff7eca up to (excluding) 6bdd2ed6458d35c368fbe9550a4d7f342abd3a92, 8da1170a16e4d4b49fa07d1f75ad480847ff7eca up to (excluding) 51f694221047c84fa185be98210eb2c354ffb8c6, 5.19

Vulnerability: This is an improper control flaw within the drm/amdgpu driver VCN encoder and decoder rings, which do not support 64-bit user fence writes and fail to reject command submission (CS) submissions with user fences. The attack requires low privileges with local access and no user interaction.

Business Impact

A successful exploit of this kernel vulnerability can lead to complete system compromise, allowing an attacker with local access to read or modify sensitive data, execute arbitrary code, and cause total system denial of service. The CVSS score of 7.8 reflects a high severity threat that requires immediate administrative attention to prevent host takeover.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.33, 7.0.10, or later where the fix is integrated.

Proactive Monitoring: Monitor system logs for unusual kernel crashes, segmentation faults, or unauthorized local execution attempts involving graphics drivers.

Compensating Controls: Restrict local shell access and limit user permissions on systems utilizing affected AMD hardware to trusted personnel only.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Local privilege escalation flaws in kernel graphics drivers pose a significant risk if local multi-user access is permitted.

Analyst Recommendation

Given the high CVSS score and potential for total system compromise, administrators must prioritize patching the Linux kernel immediately. Apply the vendor-supplied updates to affected kernel branches to permanently mitigate the risk of local privilege escalation.

Description Summary:
A memory management flaw in the Linux kernel AMDGPU VCN driver allows local users to achieve high privileges.

Executive Summary:
A vulnerability in the Linux kernel AMDGPU driver allows authenticated local users to execute arbitrary code or cause a system crash.

Vulnerability Details

CVE-ID: CVE-2026-63851

Affected Software: Linux Kernel

Affected Versions: Linux 6.7 and prior versions leading up to fixed releases (including 6.12.91, 6.18.33, and 7.0.10)

Vulnerability: This vulnerability involves the improper handling of 64-bit user fence writes within the DRM AMDGPU VCN encoder and decoder rings, requiring low privileges and local access to exploit.

Business Impact

A successful exploit of this vulnerability can lead to complete compromise of the affected host system, resulting in confidentiality, integrity, and availability losses. The CVSS score of 7.8 reflects the high severity of granting elevated local control, which could allow an attacker to escalate privileges, access sensitive data, or disrupt critical business services hosted on the machine.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.12.91, 6.18.33, 7.0.10, or later depending on the active branch.

Proactive Monitoring: Monitor local system logs for unauthorized access attempts, unexpected privilege escalations, or kernel panic events related to the amdgpu module.

Compensating Controls: Restrict local shell access and implement strict principle-of-least-privilege controls to prevent unauthorized users from executing untrusted code on the host.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw poses a notable local threat due to the high severity score, requiring local access for successful execution.

Analyst Recommendation

Administrators must prioritize updating the Linux kernel across all vulnerable environments to mitigate the risk of local privilege escalation. Applying the official kernel patches immediately ensures that the improper VCN ring fence handling is resolved before local actors can weaponize the defect.

Description Summary:
A vulnerability exists in the Linux kernel AMDGPU driver VCN encoder ring handling, which can be exploited locally by authenticated users to achieve high system impact.

Executive Summary:
A high severity vulnerability in the Linux kernel AMDGPU driver allows local attackers with low privileges to achieve complete system compromise through improper VCN encoder ring handling.

Vulnerability Details

CVE-ID: CVE-2026-63850

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions up to excluding 9f5a1459ecc3195282be617639d710b54779c9dc, 139a8a52ef4349c62129703b3a3e3a6ae4d634eb, 2c350f3cd94be847ac216e1358ec7001eaaf0934, and 8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb

Vulnerability: This is a memory handling flaw in the drm/amdgpu/vcn component where VCN encoder and decoder rings do not support 64-bit user fence writes, requiring low privileges and no user interaction.

Business Impact

A successful exploit of this vulnerability can lead to a complete compromise of confidentiality, integrity, and availability of the affected host system. Since the CVSS score is 7.8, it represents a high risk for local privilege escalation or system instability, potentially allowing an attacker with low-level local access to execute arbitrary code or trigger denial of service conditions.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.12.91, 6.18.33, 7.0.10, or later where the fix is integrated.

Proactive Monitoring: Monitor local system logs for unusual kernel crashes, segmentation faults, or unauthorized attempts to interact with the AMDGPU graphics driver.

Compensating Controls: Restrict local shell access and audit user accounts to ensure only trusted personnel possess local access privileges.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability.

Analyst Recommendation

Administrators should treat this high severity kernel flaw with urgency by scheduling kernel updates during the next maintenance window. Applying the official stable kernel patches prevents potential local privilege escalation attacks stemming from improper VCN ring buffer and user fence management.

Description Summary:
A vulnerability in the Linux kernel AMDGPU VCN driver allows local users with low privileges to achieve high confidentiality, integrity, and availability impact.

Executive Summary:
A high-severity privilege escalation and memory corruption flaw in the Linux kernel AMDGPU driver allows authenticated local attackers to achieve full system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63849

Affected Software: Linux Kernel

Affected Versions: Linux 346492f30ce3581bf5324c4ae417eab8537dc998 up to (excluding) 081ef0e46c9cdd26c0db0ef721470393d36b6655, 5a4bffd67e94944ed3db26a959346cfb7fabaecd, 8f4954722eab88e10c4ea0c0d3b1269c31421d3a, and version 6.14.

Vulnerability: This is an improper control flaw within the drm/amdgpu/vcn driver, where encoder and decoder rings fail to properly handle 64-bit user fence writes. An authenticated local attacker with low privileges can exploit this via command submission to trigger memory corruption.

Business Impact

A successful exploit of this vulnerability can lead to complete system compromise, allowing an attacker with local access to read and write sensitive data, escalate privileges, or cause a denial of service by crashing the host. The CVSS score of 7.8 reflects the severity of potential full host takeover, though mitigated slightly by the requirement for local system access and low privileges.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.33, 7.0.10, or later where the AMDGPU VCN driver fix has been applied.

Proactive Monitoring: Monitor system logs for unexpected kernel panics, segmentation faults, or unauthorized access attempts from local user accounts.

Compensating Controls: Restrict local shell access and auditing user privileges to minimize the risk of malicious actors executing local code on sensitive systems.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires local access and low privileges, meaning threat actors must already have a foothold on the target machine to exploit the kernel driver issue.

Analyst Recommendation

Given the high severity score and the potential for complete host compromise, administrators should prioritize updating affected Linux kernel packages to the latest stable versions. Testing and deploying the upstream patches provided by the kernel maintainers is critical to eliminating local escalation pathways.

Description Summary:
A vulnerability in the Linux kernel amdgpu JPEG driver fails to properly handle user fence writes, allowing local authenticated attackers to achieve high impact across confidentiality, integrity, and availability.

Executive Summary:
A local privilege escalation vulnerability exists in the Linux kernel amdgpu JPEG driver, which could allow an attacker with low privileges to compromise system confidentiality, integrity, and availability.

Vulnerability Details

CVE-ID: CVE-2026-63848

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions 6ac27241106bc946bd50032f4cd96899c6a6fe69 up to excluding f675801889b265634aefd30aa4503fc2b9e6ce1c, 2e216c2ff159b2eb1da6e9c716d727efc73c64b5, b41248d1c18384835f6532e68592ee07605da283, 41c4f3f68a343d62bd352a95ace93a11c4ad92ed, e5f612dc91650561fe2b5b76dd6d2898ec9ad480

Vulnerability: The flaw arises in the amdgpu JPEG driver because JPEG rings do not support 64-bit user fence writes, requiring command submission rejections for user fences. The attack vector is local with low privileges required and no user interaction.

Business Impact

A successful exploit of this vulnerability can lead to a complete compromise of the affected host system, resulting in unauthorized access to sensitive data, system tampering, or persistent denial of service. With a CVSS score of 7.8, the severity is high, reflecting that while local access is required, the potential impact on core business operations and host security is severe.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later where the patch has been integrated.

Proactive Monitoring: Monitor system logs for unusual kernel crashes, segmentation faults, or unauthorized attempts to interact with the graphics subsystem and amdgpu modules.

Compensating Controls: Restrict local shell access and limit user privileges on systems utilizing vulnerable AMD GPU hardware to mitigate the threat of local exploitation.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a credible risk of local privilege escalation or system instability for environments running unpatched kernel versions with affected AMD graphics hardware.

Analyst Recommendation

Security teams must prioritize updating affected Linux kernel instances to the patched versions as part of standard maintenance cycles. Restricting local access and applying robust privilege management will further reduce exposure until kernel updates can be successfully deployed.

Description Summary:
A vulnerability in the Linux kernel amdgpu JPEG driver allows local authenticated users to cause high impacts on confidentiality, integrity, and availability.

Executive Summary:
A high-severity vulnerability in the Linux kernel amdgpu JPEG driver allows local users to achieve full system compromise by exploiting improper handling of user fences.

Vulnerability Details

CVE-ID: CVE-2026-63847

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions up to excluding 6.6.141, 6.12.91, 6.18.33, and 7.0.10

Vulnerability: This is an improper control handling flaw in the amdgpu JPEG driver ring implementation, requiring local access with low privileges and no user interaction.

Business Impact

A successful exploit of this vulnerability can lead to complete compromise of the affected host system, including unauthorized data access, system modification, and denial of service. The CVSS score of 7.8 indicates a high severity rating, reflecting that while local access is required, the resulting impact on confidentiality, integrity, and availability is critical.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for unauthorized local shell access and unexpected kernel crashes or panics related to the amdgpu driver.

Compensating Controls: Restrict local shell access and enforce strict the principle of least privilege to prevent untrusted users from executing arbitrary commands or code on the host.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from JPEG rings failing to properly support 64-bit user fence writes.

Analyst Recommendation

Administrators must prioritize updating the Linux kernel across all affected systems to remediate the underlying driver flaw. Given the high severity score and potential for full system compromise, prompt patching is essential to maintain environmental security.

Description Summary:
A memory management flaw in the Linux kernel AMDGPU JPEG driver allows local authenticated users to compromise system integrity.

Executive Summary:
A high-severity privilege escalation vulnerability in the Linux kernel AMDGPU driver allows local attackers to achieve high confidentiality, integrity, and availability impacts.

Vulnerability Details

CVE-ID: CVE-2026-63846

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions up to 5.9, and specific ranges in 6.6, 6.12, and 6.18 prior to fixed releases

Vulnerability: This is an improper input validation and handling flaw within the drm/amdgpu JPEG ring component, triggered via local command submissions requiring low privileges and no user interaction.

Business Impact

A successful exploit of this vulnerability could allow a local authenticated user to compromise the entire operating system, leading to complete data compromise, unauthorized administrative access, or sustained system downtime. With a CVSS score of 7.8, the high severity rating is justified by the potential for full system compromise, although the local attack vector limits the initial risk profile to environments where untrusted local users have execution privileges.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for unusual kernel crashes, segmentation faults, or unauthorized execution attempts associated with AMDGPU device nodes.

Compensating Controls: Restrict local shell access and ensure that only trusted users are granted permissions to interact with hardware graphics devices such as /dev/dri/renderD*.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from missing validation checks for 64-bit user fences on JPEG v3.0 rings.

Analyst Recommendation

Administrators must treat this vulnerability with high urgency given its potential to grant full control over affected systems. Applying the latest kernel patches across all supported distribution branches is critical to mitigating the risk of local privilege escalation and system compromise.

Description Summary:
A vulnerability in the Linux kernel amdgpu JPEG driver fails to set no_user_fence for JPEG v4.0 rings, leading to potential security bypasses.

Executive Summary:
A high-severity kernel flaw in the Linux amdgpu driver allows local authenticated attackers to achieve complete system compromise through improper handling of JPEG v4.0 ring user fences.

Vulnerability Details

CVE-ID: CVE-2026-63845

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions up to excluding d4e0172a1b614373385e9b7111b580f8d2e0b98f, a676f16ea9a7df96d69f405afb6eb349571b3382, 6876d05b899102f4dfdb9ad560132126144c1c72, af4b458daa597dae707bf3f1f74745f5fc133ca2, e7e90b5839aeb8805ec83bb4da610b8dab8e184d

Vulnerability: This vulnerability involves improper validation of command stream submissions within the amdgpu JPEG driver component, requiring low local privileges and no user interaction for successful exploitation.

Business Impact

A successful exploit can grant an attacker full control over the affected operating system, potentially leading to unauthorized data access, privilege escalation, and complete system downtime. The assigned CVSS score of 7.8 reflects the high severity of the potential impact on confidentiality, integrity, and availability, despite the requirement for local access.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later where the fix is integrated.

Proactive Monitoring: Monitor system logs for unusual kernel crashes, segmentation faults, or unauthorized local access attempts.

Compensating Controls: Restrict local user access and limit execution permissions to prevent untrusted local execution.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a credible local threat if proper kernel hardening is absent.

Analyst Recommendation

Administrators should treat this vulnerability with high urgency despite its local attack vector requirement. Applying the patched kernel versions is critical to neutralize the risk of local privilege escalation and system compromise.

Description Summary:
A vulnerability in the Linux kernel amdgpu JPEG driver fails to set no_user_fence for JPEG v4.0.3 rings, allowing local command submission manipulation.

Executive Summary:
A high-severity local privilege escalation vulnerability in the Linux kernel AMD GPU driver could allow an authenticated local attacker to achieve complete system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63844

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions e684e654eba9481a9f462a7bbf5c385b7d1c076e up to (excluding) b884ff67d62ef514eee9d5f605c03101c8b6bc98, and corresponding ranges in stable branches

Vulnerability: This is an improper control handling flaw in the drm/amdgpu JPEG driver where JPEG rings fail to support 64-bit user fence writes. An attacker with low local privileges and no user interaction can exploit this vulnerability.

Business Impact

A successful exploit of this vulnerability can lead to a complete compromise of confidentiality, integrity, and availability of the affected system. Because the flaw allows an attacker with low local access to execute arbitrary code or manipulate kernel memory, multi-tenant or shared hosting environments face severe risks of host breakout and data theft. The CVSS score of 7.8 reflects the high severity of local system compromise despite requiring local access.

Remediation Plan

Immediate Action: Update the Linux kernel to the fixed stable versions, specifically version 6.6.141, 6.12.91, 6.18.33, 7.0.10, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for kernel panics, segmentation faults, or unauthorized access attempts originating from local user accounts.

Compensating Controls: Restrict local shell access and tightly control user permissions to ensure that only trusted personnel can execute code on the host operating system.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from missing validation checks within specific GPU hardware handling routines.

Analyst Recommendation

System administrators maintaining systems with affected AMD GPU driver components must prioritize applying the latest upstream kernel patches. Prompt updating mitigates the risk of local privilege escalation and maintains the overall security posture of the infrastructure.

Description Summary:
A vulnerability in the Linux kernel drm/amdgpu driver fails to set no_user_fence for JPEG v4.0.5 rings, leading to potential privilege escalation.

Executive Summary:
A high-severity vulnerability in the Linux kernel amdgpu graphics driver allows local authenticated attackers to achieve complete system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63843

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions 6.7 up to fixed releases (6.12.91, 6.18.33, 7.0.10)

Vulnerability: This issue involves improper handling of 64-bit user fence writes in the DRM amdgpu JPEG ring buffer component, requiring low local privileges and no user interaction for successful exploitation.

Business Impact

A successful exploit of this vulnerability could allow an attacker with local system access to achieve high impacts on confidentiality, integrity, and availability, effectively granting full control over the host operating system. This justifies the CVSS score of 7.8, representing a severe risk for multi-tenant environments, workstations, or servers where untrusted local users may execute code.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.12.91, 6.18.33, 7.0.10, or later, depending on the active distribution branch.

Proactive Monitoring: Monitor system logs for unauthorized local user activity, abnormal kernel crashes, or suspicious execution of command-line utilities.

Compensating Controls: Restrict local shell access and apply the principle of least privilege to minimize the number of users capable of executing code on the system.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Local kernel vulnerabilities of this type pose a significant threat primarily if defense-in-depth boundaries are already compromised.

Analyst Recommendation

Administrators managing affected Linux kernel distributions must prioritize applying the latest upstream security patches or vendor-supplied kernel updates. Prompt remediation is critical to prevent local privilege escalation and maintain the overall security posture of the infrastructure.

Description Summary:
A vulnerability in the Linux kernel amdgpu JPEG driver allows local users with low privileges to impact confidentiality, integrity, and availability.

Executive Summary:
A local privilege escalation and denial of service vulnerability in the Linux kernel amdgpu JPEG driver allows low-privileged attackers to achieve full system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63842

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions dfad65c65728401587142577dd283476491bac83 up to (excluding) 3a55ff19a6ff5e046d6a4a18e36deec5d95d9a2e, a7e63bb93a7fde3c8920984c3deee9acfe461562, 69ab75c7c5f378eb46f4c918aa848bb5c5603924, and ea7c61c5f895e8f9ea0ffffa180498ef9c740152; version 6.9

Vulnerability: This is an improper handling of user fence writes within the DRM AMDGPU JPEG driver, where JPEG v5.0.0 rings fail to support 64-bit user fence writes and do not correctly reject command stream submissions containing them, requiring low privileges and no user interaction.

Business Impact

Successful exploitation of this vulnerability allows a local attacker with low privileges to gain complete control over the affected operating system, leading to confidentiality breaches, data tampering, and severe system downtime. The CVSS score of 7.8 reflects the high severity of potential impacts on system confidentiality, integrity, and availability.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.12.91, 6.18.33, 7.0.10, or later where the patch is integrated.

Proactive Monitoring: Monitor local system logs for unauthorized command submission attempts, abnormal driver crashes, or unexpected kernel panics related to the amdgpu driver.

Compensating Controls: Restrict local shell access and limit user privileges to trusted accounts only, reducing the pool of actors who can leverage the local attack vector.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability.

Analyst Recommendation

Given the high CVSS score and the deep operating system access granted by kernel-level flaws, prompt action is required to secure vulnerable infrastructure. System administrators must prioritize patching the Linux kernel to the fixed versions across all applicable host environments to neutralize the risk of local compromise.

Description Summary:
A vulnerability in the Linux kernel DRM amdgpu JPEG driver allows local attackers with low privileges to achieve high confidentiality, integrity, and availability impacts due to missing user fence checks on JPEG v5.0.1 rings.

Executive Summary:
A high severity vulnerability in the Linux kernel amdgpu JPEG driver permits local privilege escalation and system compromise through improper handling of user fence writes.

Vulnerability Details

CVE-ID: CVE-2026-63841

Affected Software: Linux Kernel

Affected Versions: Linux Kernel b8f57b69942b2faa7deee0566cc9306316fe0a74 up to (excluding) d0f6ae14c0452be4fc3aa5cf81c74e68b3243050, 869ce148c0d953570f8307c3e206b47bd5d3be99, and 2f8e3da71a1b469b6e157aa3972f1448b3157840

Vulnerability: This is a driver-level memory management flaw in the Direct Rendering Manager subsystem, specifically within the AMD GPU JPEG module, requiring low local privileges and no user interaction to execute.

Business Impact

A successful exploit of this vulnerability could grant a local attacker complete control over the affected host system, leading to full data compromise, unauthorized access, and potential denial of service. The CVSS score of 7.8 reflects a high severity rating due to the high impact on system confidentiality, integrity, and availability despite requiring local access.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.33, 7.0.10, or later where the fix is incorporated.

Proactive Monitoring: Monitor system logs for unusual local user activity, kernel panics, or graphics driver faults associated with the amdgpu module.

Compensating Controls: Restrict local shell access and tightly control user permissions on systems utilizing vulnerable AMD GPU hardware configurations.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability.

Analyst Recommendation

Administrators must prioritize updating the Linux kernel to the patched versions to eliminate local attack vectors against the graphics subsystem. Applying the latest stable kernel builds is critical to maintaining system security and preventing potential local privilege escalation.

Description Summary:
A vulnerability in the Linux kernel DRM AMDGPU JPEG driver allows local authenticated attackers to achieve high confidentiality, integrity, and availability impacts due to unsupported 64-bit user fence writes.

Executive Summary:
A high-severity kernel flaw in the Linux AMDGPU driver permits local users to compromise system integrity and availability through improper handling of JPEG rings.

Vulnerability Details

CVE-ID: CVE-2026-63840

Affected Software: Linux Kernel

Affected Versions: 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 up to (excluding) 46ad73aec27d020f103b4262e4da2d2c22f54799, 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 up to (excluding) 3b0ea2021351b6b813b34fac940957f1f4fad85b

Vulnerability: This issue involves improper input validation in the DRM AMDGPU JPEG driver via the JPEG v5.3.0 ring, requiring local access with low privileges and no user interaction.

Business Impact

A successful exploit can lead to full system compromise, including complete data loss, unauthorized access, and system downtime. The CVSS score of 7.8 reflects the high severity of potential impacts, though the requirement for local access limits the immediate vector to already authenticated users or compromised local environments.

Remediation Plan

Immediate Action: Update the Linux kernel to version 7.0.10 or later, or apply the corresponding upstream fix commits.

Proactive Monitoring: Monitor local system logs for unauthorized access attempts, abnormal process execution, or kernel panics related to the amdgpu driver.

Compensating Controls: Restrict local shell access and implement strict principle-of-least-privilege permissions to prevent untrusted users from executing arbitrary commands or interacting directly with Direct Rendering Manager devices.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability.

Analyst Recommendation

Given the high CVSS severity score of 7.8, administrators must prioritize updating the Linux kernel to patched versions as soon as possible. Applying the official kernel update or patch commits will eliminate the underlying flaw and prevent potential local escalation scenarios.

Description Summary:
A buffer overflow in the GIMP GIF image loading component allows for denial of service or arbitrary code execution when processing a malicious GIF file.

Executive Summary:
A buffer overflow vulnerability in the GIMP image processing component of Red Hat Enterprise Linux poses a risk of arbitrary code execution through specially crafted GIF files.

Vulnerability Details

CVE-ID: CVE-2026-6384

Affected Software: Red Hat Enterprise Linux

Affected Versions: Red Hat Enterprise Linux 6, 7, 8, 9

Vulnerability: This is a classic buffer overflow (CWE-120) occurring within the ReadJeffsImage function of the GIF loading component. The vulnerability requires a local attacker with the ability to trigger image processing or a user interaction scenario to execute the malicious file.

Business Impact

The vulnerability carries a CVSS score of 7.3, indicating a high severity risk. Successful exploitation could allow an attacker to gain unauthorized control over the affected system or cause critical service interruptions, potentially leading to data loss or significant operational downtime.

Remediation Plan

Immediate Action: Users should apply the latest security updates provided by Red Hat as soon as they become available in the official repositories. Until patches are applied, avoid opening untrusted or unknown GIF files with the GIMP software.

Proactive Monitoring: Security teams should monitor system logs for unusual crashes related to image processing applications or unexpected process terminations.

Compensating Controls: Restrict permissions for image processing software to non-privileged user accounts to minimize the potential impact of an arbitrary code execution event.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of April 17, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is dependent on the processing of a maliciously crafted input, which limits its immediate reach to scenarios where a victim can be induced to open such a file.

Analyst Recommendation

Given the potential for arbitrary code execution, this vulnerability represents a significant security risk to environments utilizing GIMP on Red Hat Enterprise Linux. Administrators are advised to prioritize system updates and implement strict file handling policies to mitigate the risk of processing malicious content.

Description Summary:
A race condition or improper handling in the Linux kernel mt76 wifi driver allows unauthorized memory reinitialization due to a missing wcid publish check.

Executive Summary:
A vulnerability in the Linux kernel mt76 wifi driver could lead to system instability or memory corruption, posing a high risk to affected wireless infrastructures.

Vulnerability Details

CVE-ID: CVE-2026-63832

Affected Software: Linux Kernel

Affected Versions: 6.12.13 up to (excluding) 6.13, 6.13.2 up to (excluding) 6.14, and specific development commits.

Vulnerability: This is an improper check vulnerability within the mt76 wifi driver, specifically in the mt76_sta_add function. The flaw allows an attacker to trigger unintended reinitialization of the wcid poll_list, and the attack vector is categorized as adjacent (AV:A).

Business Impact

Successful exploitation of this kernel-level vulnerability could result in a denial of service or potential privilege escalation. Given the CVSS score of 8.8, this represents a high-severity risk that could impact the availability and integrity of systems relying on affected wireless hardware.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.38, 7.1.3, or later versions where the fix has been backported.

Proactive Monitoring: Monitor system logs for kernel panics or unexpected crashes related to the mt76 wifi driver modules.

Compensating Controls: Restrict access to wireless management interfaces to authorized personnel only to reduce the likelihood of remote adjacent exploitation.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is an inherent logic error in the driver code that requires specific conditions to trigger.

Analyst Recommendation

Organizations utilizing Linux-based systems with mt76 wireless drivers should prioritize applying the provided kernel patches. Given the potential for system-wide impact, testing and deploying the stable kernel release is the most effective method to mitigate this high-severity risk.

Description Summary:
A memory safety flaw in the Linux mac802154 wireless subsystem fails to perform necessary data copying before in-place cryptographic operations, leading to potential memory corruption.

Executive Summary:
A memory safety flaw in the Linux mac802154 wireless subsystem could allow an adjacent attacker to trigger memory corruption or system crashes.

Vulnerability Details

CVE-ID: CVE-2026-63831

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions prior to 5.10.260, 5.15.211, 6.1.177, and 6.6.144

Vulnerability: The vulnerability resides in the mac802154 llsec implementation. It performs in-place cryptographic transformations on network packets without using skb_cow_data(), which can lead to memory corruption when the underlying buffer is shared or read-only.

Business Impact

An attacker within radio range (adjacent network) could potentially exploit this to cause a denial of service or, in specific configurations, execute arbitrary code. Given the CVSS score of 8.8, this vulnerability is critical for systems using IEEE 802.15.4 wireless protocols, such as IoT gateways and industrial control sensors.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.10.260, 5.15.211, 6.1.177, 6.6.144, or later.

Proactive Monitoring: Monitor for kernel panics or unexplained memory errors in systems that utilize mac802154 drivers.

Compensating Controls: If patching is delayed, disable wireless interfaces utilizing the mac802154 protocol if they are not strictly required for business operations.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While exploitation requires proximity to the target, the nature of the flaw makes it a high-priority item for devices exposed to wireless network traffic.

Analyst Recommendation

This vulnerability represents a significant risk for wireless-enabled Linux hardware. Organizations should prioritize updating affected kernels to prevent memory corruption attacks and maintain the security of wireless communication channels.

Description Summary:
A privilege check vulnerability exists in the Linux kernel ip_gre tunnel implementation, failing to properly enforce CAP_NET_ADMIN requirements during device changelink operations.

Executive Summary:
A missing privilege check in the Linux kernel IP GRE tunnel implementation could allow a local authenticated attacker to perform unauthorized network configuration changes.

Vulnerability Details

CVE-ID: CVE-2026-63829

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions prior to 6.12.95, 6.18.38, and 7.1.3

Vulnerability: The vulnerability exists in the ip_gre module. It fails to require CAP_NET_ADMIN privileges in the device network namespace during a tunnel changelink operation, allowing an authenticated local user to modify network tunnel settings without the appropriate permissions.

Business Impact

An attacker could leverage this flaw to redirect network traffic or perform man-in-the-middle attacks within the network namespace. With a CVSS score of 8.8, this poses a substantial risk to network integrity and confidentiality, particularly in environments utilizing containerized networking or virtualized network tunnels.

Remediation Plan

Immediate Action: Apply the latest security patches provided by your Linux distribution to update the kernel to the versions listed above.

Proactive Monitoring: Review network interface configuration logs for unauthorized changes to GRE tunnel parameters or unexpected interface modifications.

Compensating Controls: Implement strict Network Namespace isolation and ensure that users do not have elevated privileges within restricted network namespaces.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The requirement for local access and specific namespace configuration limits the attack surface, but the potential for network traffic manipulation remains a serious concern.

Analyst Recommendation

Administrators should treat this vulnerability with high urgency, especially in systems hosting multiple users or containers. Updating the kernel to the specified version is the only effective way to ensure that privilege checks are correctly enforced for tunnel operations.

Description Summary:
A security flaw in the Linux kernel AppArmor module fails to properly mediate the implicit connection associated with TCP Fast Open sendmsg operations.

Executive Summary:
A bypass vulnerability in the Linux kernel AppArmor subsystem may allow unauthorized network connections to circumvent established security policies.

Vulnerability Details

CVE-ID: CVE-2026-63828

Affected Software: Linux Kernel

Affected Versions: 3.6 up to (excluding) 6.1.177, 6.6.144, 6.12.95, and 6.18.38

Vulnerability: The vulnerability exists in the AppArmor mediation logic for TCP Fast Open. A local user with low privileges can perform a sendmsg operation that initiates a network connection without the intended AppArmor access controls being applied.

Business Impact

This flaw undermines the security enforcement provided by AppArmor, potentially allowing restricted processes to communicate with unauthorized network endpoints. With a CVSS score of 8.4, this represents a significant risk for environments that rely on mandatory access control to sandbox applications or services.

Remediation Plan

Immediate Action: Apply the latest kernel security updates to move to version 6.1.177, 6.6.144, 6.12.95, 6.18.38, or newer.

Proactive Monitoring: Review AppArmor audit logs for unexpected network activity originating from sandboxed applications.

Compensating Controls: Use network-level firewalls to restrict outbound traffic from sensitive processes, providing a secondary layer of defense if AppArmor is bypassed.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The issue highlights a gap in how modern socket features like TCP Fast Open interact with existing security hooks.

Analyst Recommendation

The reliance on AppArmor for process isolation makes this an important update for security-hardened Linux distributions. Administrators should verify their current kernel version and apply the recommended patches to restore full mediation of network operations.

Description Summary:
A race condition in the Linux kernel GCOV instrumentation leads to out of bounds memory writes during concurrent IPComp processing, potentially resulting in system crashes or arbitrary code execution.

Executive Summary:
A critical vulnerability in the Linux kernel allows for out of bounds memory writes during concurrent GCOV instrumentation, posing a high risk of system compromise or denial of service.

Vulnerability Details

CVE-ID: CVE-2026-63825

Affected Software: Linux Kernel

Affected Versions: See metadata for specific git commit ranges and fixed releases.

Vulnerability: The vulnerability arises because GCOV branch counters are global rather than per CPU, causing inconsistent values when accessed concurrently. An unauthenticated attacker could trigger this flaw during IPComp processing to induce memory corruption via out of bounds writes.

Business Impact

The flaw carries a CVSS score of 9.8, reflecting its potential for full system compromise. Successful exploitation could lead to arbitrary code execution, unauthorized data access, or persistent system instability, causing significant operational downtime and security breaches for affected infrastructure.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.38, 7.1.3, or later versions where the atomic counter update fix has been implemented.

Proactive Monitoring: Monitor system logs for kernel panics or page fault errors, particularly those involving zlib_inflate or ipcomp_decompress, which may indicate exploitation attempts.

Compensating Controls: If immediate patching is not feasible, consider disabling GCOV instrumentation in production kernels or restricting access to services utilizing IP Payload Compression (IPComp) if possible.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of July 19, 2026, there is no public information indicating active exploitation or a public proof of concept for this vulnerability. While the flaw is theoretically exploitable via network vectors, it requires specific conditions related to concurrent CPU execution and IPComp traffic.

Analyst Recommendation

Given the critical severity and potential for memory corruption, administrators should prioritize patching the Linux kernel across all affected environments. Organizations should verify their kernel build configurations and apply the upstream fixes provided by the stable kernel tree as soon as possible to mitigate the risk of exploitation.

Description Summary:
A use-after-free vulnerability exists in the Linux kernel key management subsystem due to improper handling of request_key_auth payloads during instantiation paths.

Executive Summary:
A use-after-free vulnerability in the Linux kernel key management subsystem allows local low-privileged users to achieve high system impact, including potential code execution.

Vulnerability Details

CVE-ID: CVE-2026-63823

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions prior to fixed releases such as 5.10.260, 5.15.211, 6.1.177, and 6.6.144

Vulnerability: This flaw is a use-after-free vulnerability within the keys subsystem, specifically involving race conditions during the instantiation paths of request_key_auth payloads, requiring low local privileges and no user interaction.

Business Impact

A successful exploit of this vulnerability could allow a malicious local user to gain full control over the affected operating system instance, resulting in complete confidentiality, integrity, and availability compromise. The assigned CVSS score of 7.8 indicates a high severity rating, reflecting the potential for local privilege escalation and system compromise despite requiring local access.

Remediation Plan

Immediate Action: Update the Linux kernel to the latest patched stable version, such as 5.10.260, 5.15.211, 6.1.177, 6.6.144, or later, depending on the active release branch.

Proactive Monitoring: Monitor system logs for unexpected kernel panics, segmentation faults, or unauthorized local execution attempts that may indicate exploitation activities.

Compensating Controls: Restrict local shell access and implement strict principle-of-least-privilege controls to minimize the number of users capable of executing arbitrary code locally.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a credible risk of local exploitation due to the nature of kernel race conditions.

Analyst Recommendation

System administrators managing Linux environments must prioritize applying the latest kernel updates provided by their distribution vendors. Prompt patching of this use-after-free flaw is essential to prevent local privilege escalation and maintain the security posture of the host operating system.

Description Summary:
Several WordPress file management plugins are vulnerable to OS Command Injection when processing images, allowing authenticated users with administrative privileges to execute arbitrary commands.

Executive Summary:
Multiple WordPress file management plugins contain an OS Command Injection vulnerability that allows authenticated administrative users to execute arbitrary system commands.

Vulnerability Details

CVE-ID: CVE-2026-6382

Affected Software: FileOrganizer, Advanced File Manager, File Manager Pro, and File Manager WordPress plugins

Affected Versions: See metadata for version thresholds

Vulnerability: The vulnerability occurs because the plugins fail to properly escape parameters before passing them to shell commands during image processing. This exploit requires the attacker to be authenticated with high-level privileges (e.g., administrator).

Business Impact

Successful exploitation allows an authenticated administrator to execute arbitrary commands on the underlying server. While this requires authentication, the impact is severe, potentially allowing an attacker to escalate privileges, access sensitive files, or gain a shell on the web server. The CVSS score of 9.1 reflects the high potential for total system compromise.

Remediation Plan

Immediate Action: Update the affected WordPress plugins to the latest versions that include the security fixes (FileOrganizer 1.1.9, Advanced File Manager 5.4.12, File Manager Pro 2.1.1, or File Manager 8.0.4).

Proactive Monitoring: Audit user account activity and review administrative logs for unauthorized or unexpected file management operations.

Compensating Controls: Disable the affected plugin functionality if it is not business-critical, or restrict administrative access to trusted personnel only.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of Jul 6, 2026, there is no public information indicating active exploitation of this vulnerability. However, due to the nature of the flaw, the potential for exploitation is high.

Analyst Recommendation

Administrators should treat this vulnerability with high urgency. Given the requirement for administrative authentication, ensure that the principle of least privilege is applied to user accounts and update all listed plugins to the patched versions immediately.

Description Summary:
A sanity check omission in the Linux kernel f2fs file system implementation can lead to a kernel bug and denial of service conditions.

Executive Summary:
A missing sanity check in the Linux kernel f2fs file system allows local authenticated attackers to trigger a kernel bug and potentially compromise system integrity.

Vulnerability Details

CVE-ID: CVE-2026-63819

Affected Software: Linux Kernel

Affected Versions: Linux Linux: e05df3b115e7308afbca652769b54e4549fcc723 up to (excluding) 406c28af75123432d38cf9bbaa6f1476f7b14770, e05df3b115e7308afbca652769b54e4549fcc723 up to (excluding) 0cc21c1ffe15b4156b0bf744f32fd1faef0b7c73, e05df3b115e7308afbca652769b54e4549fcc723 up to (excluding) 8712353ed80f87271d732297567dcdbe4b84e8c7

Vulnerability: This is an improper check or missing sanity validation vulnerability within the f2fs file system module of the Linux kernel, requiring local access with low privileges and no user interaction by the attacker.

Business Impact

A successful exploitation of this vulnerability can lead to system crashes, unauthorized access, and complete compromise of confidentiality, integrity, and availability on the affected host. The assigned CVSS score of 7.8 reflects a high severity level, primarily driven by the potential for local privilege escalation and denial of service via kernel panics.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.39, 7.1.3, or later versions where the fix has been applied.

Proactive Monitoring: Monitor system logs for kernel bug traces, unexpected reboots, or invalid opcode occurrences associated with f2fs operations.

Compensating Controls: Restrict local shell access and limit the mounting of untrusted f2fs file systems to mitigate potential local exploitation vectors.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents a credible risk of local denial of service and privilege escalation due to kernel panic triggers.

Analyst Recommendation

System administrators must treat this high severity kernel vulnerability with urgency by scheduling and applying the necessary kernel updates during the next maintenance window. Restricting local access remains an essential interim measure until the updated packages are successfully deployed across all vulnerable environments.

Description Summary:
A validation error in the Linux kernel f2fs filesystem allows for potential memory corruption when replaying orphan inodes.

Executive Summary:
A validation flaw in the Linux kernel f2fs filesystem could allow an attacker to cause system instability or memory corruption.

Vulnerability Details

CVE-ID: CVE-2026-63818

Affected Software: Linux Kernel

Affected Versions: Linux kernels 127e670abfa7fa150f6550d620ded930f5bdb4e7 up to 3.8

Vulnerability: The f2fs_recover_orphan_inodes function incorrectly trusts the orphan block entry_count during filesystem recovery. This is an unauthenticated local vulnerability involving improper input validation.

Business Impact

Exploitation of this vulnerability could lead to significant filesystem corruption or system denial of service. With a CVSS score of 8.4, the risk to data availability and system reliability is high, particularly in environments utilizing the f2fs filesystem.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.12.96, 6.18.38, 7.1.3, or later, depending on the current branch in use.

Proactive Monitoring: Regularly audit filesystem integrity and monitor kernel logs for errors related to f2fs recovery or unexpected system reboots.

Compensating Controls: Ensure that filesystems are mounted with appropriate integrity checks and consider utilizing read-only mounts for non-essential storage where applicable.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The risk is constrained to local access where a malicious image could be used to trigger the recovery flaw.

Analyst Recommendation

Given the potential for filesystem-level damage, it is critical to apply the kernel patches provided by your vendor immediately. Verify that your specific kernel version is updated to one of the identified safe releases.

Description Summary:
A validation flaw in the Linux kernel f2fs file system allows local users with low privileges to bypass inode range checks and instantiate fake internal inodes.

Executive Summary:
A high-severity validation flaw in the Linux kernel f2fs file system allows local attackers with low privileges to achieve full system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63817

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions 6ce19aff0b8cd386860855185c6cd79337fc4d2b up to (excluding) fcc051d377a9701a452e7663a1a8223c26225df9, 29115b8c9172d34e67ab26cc4f6c209b7a236d7a, 13e4b59d3a9413f66f116fa6c4828519b960a5ea, 16161444c30d8dff9428abbae42b72ce4e32a932, 77f216ff9ce5cde8eed9f6d12707e906dffdc9f7, 0969926d987bbde9a1aa49da317582ba37095805, 5073c66a96a9c23c0c2533ed4ed06e42f9021208

Vulnerability: This is a privilege validation vulnerability in the f2fs file system component of the Linux kernel, where the is_meta_ino() function unconditionally treats the compressed page cache inode as a meta inode. An authenticated attacker with low local privileges can exploit this via crafted directory entries to trigger unintended inode instantiation.

Business Impact

A successful exploit of this vulnerability could lead to total confidentiality, integrity, and availability compromise of the affected host system. Since the vulnerability permits low-privileged local users to manipulate internal kernel structures, attackers can potentially escalate privileges to root level, resulting in unauthorized data access, system disruption, and complete host takeover. The assigned CVSS score of 7.8 reflects a high severity level, primarily constrained by the requirement for local access.

Remediation Plan

Immediate Action: Update the Linux kernel to the patched stable versions, specifically fixed in versions 5.15.212, 6.1.177, 6.6.144, 6.12.95, or later.

Proactive Monitoring: Monitor system audit logs for anomalous f2fs mount operations, unexpected kernel trace events, and unauthorized privilege escalation attempts.

Compensating Controls: Restrict local user access and limit execution privileges on systems utilizing f2fs file systems until updates can be deployed.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw requires local access and low privileges to interact with the vulnerable f2fs file system logic.

Analyst Recommendation

System administrators must treat this high-severity kernel vulnerability with urgency by applying the official kernel patches immediately. Because the flaw allows local privilege escalation, prompt updates to the affected Linux kernel packages are essential to protect system integrity and prevent unauthorized administrative access.

Description Summary:
A use-after-free vulnerability exists in the Linux kernel F2FS file system atomic write handling, allowing local authenticated users to compromise system integrity.

Executive Summary:
A use-after-free vulnerability in the Linux kernel F2FS file system can allow local attackers to achieve high privilege escalation and system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63816

Affected Software: Linux Kernel

Affected Versions: 3db1de0e582c358dd013f3703cd55b5fe4076436 up to (excluding) 7d3ae21783e5914c1761ac7d63f882d3d70800e9, 5.18.18 up to (excluding) 5.19, and selected stable branches

Vulnerability: This is a use-after-free vulnerability within the f2fs garbage collection implementation involving atomic inodes, requiring local authenticated access with no user interaction.

Business Impact

A successful exploitation of this flaw can lead to a complete compromise of confidentiality, integrity, and availability on the host system. Given the CVSS score of 7.8, the high severity rating reflects the potential for local privilege escalation or denial of service attacks against affected infrastructure.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.145, 6.12.96, 6.18.39, 7.1.3, or later as provided by the vendor.

Proactive Monitoring: Monitor local system logs for unexpected kernel panics, segmentation faults, or anomalies related to F2FS file system operations.

Compensating Controls: Restrict local shell access and apply strict least-privilege principles to limit the exposure of systems running the F2FS file system.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw exists due to a missing reference count on the atomic inode during garbage collection routines.

Analyst Recommendation

Security teams must prioritize updating affected Linux kernel packages to the patched versions immediately. Restricting local access and applying appropriate hardening guidelines will further mitigate the risk of exploitation.

Description Summary:
A memory handling flaw exists in the Linux kernel f2fs file system where i_inline_xattr_size is loaded without proper validation for non-inline-xattr inodes.

Executive Summary:
A vulnerability in the Linux kernel f2fs subsystem may allow a local attacker to trigger memory corruption or system instability.

Vulnerability Details

CVE-ID: CVE-2026-63815

Affected Software: Linux Kernel

Affected Versions: 4.15 up to (excluding) 6.12.96, 6.18.39, and 7.1.3

Vulnerability: This is an improper input validation vulnerability within the f2fs file system driver. An unauthenticated local attacker can exploit this flaw by manipulating file system structures, leading to a potential crash or arbitrary code execution.

Business Impact

Successful exploitation of this kernel-level vulnerability could lead to a complete compromise of system integrity and availability. Given the CVSS score of 8.4, this poses a significant risk to servers running affected kernel versions, as it allows for local privilege escalation or denial of service scenarios.

Remediation Plan

Immediate Action: Update your Linux kernel to version 6.12.96, 6.18.39, 7.1.3, or later to incorporate the necessary sanity checks.

Proactive Monitoring: Monitor system logs for kernel panic events or f2fs-related errors that may indicate exploitation attempts.

Compensating Controls: Restrict access to the local machine to authorized users only, as the vulnerability requires local access to the file system.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from a lack of bounds checking on file system metadata, which is a common vector for kernel-level instability.

Analyst Recommendation

This vulnerability is critical due to its potential for kernel-level impact. Administrators should prioritize patching their production Linux environments by migrating to the specified stable kernel versions as soon as testing permits to eliminate this exposure.

Description Summary:
A slab-out-of-bounds vulnerability in the Linux kernel f2fs filesystem allows local attackers with low privileges to achieve high impacts on confidentiality, integrity, and availability.

Executive Summary:
An out-of-bounds read vulnerability in the Linux kernel f2fs subsystem allows authenticated local users to cause system instability or compromise data integrity.

Vulnerability Details

CVE-ID: CVE-2026-63814

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions up to 5.10.260, 5.15.211, 6.1.177, 6.6.144, and corresponding development trees

Vulnerability: This is a buffer over-read flaw in the f2fs_acl_from_disk function, where malformed Access Control Lists bypass aggregate length checks, allowing low-privileged local attackers to trigger slab-out-of-bounds memory reads via crafted filesystem attributes.

Business Impact

A successful exploit of this vulnerability can result in local denial of service through kernel panics, potential information disclosure of kernel memory, or local privilege escalation. Given the CVSS score of 7.8, the risk is classified as high, as an attacker with low-level local access can undermine the overall integrity and availability of the host operating system.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.10.260, 5.15.211, 6.1.177, 6.6.144, or apply the official patch from the upstream git repository.

Proactive Monitoring: Monitor system logs for kernel BUG or KASAN slab-out-of-bounds error reports related to f2fs and acl processing.

Compensating Controls: Restrict local shell access and carefully audit mounting permissions for untrusted f2fs formatted storage media.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from insufficient input validation on disk-based filesystem structures.

Analyst Recommendation

Administrators managing systems that utilize the f2fs filesystem should prioritize applying the latest stable kernel updates. Because local code execution or administrative pivoting often begins with lower-privileged local access vectors, patching this kernel vulnerability is vital to maintaining host security hardening baselines.

Description Summary:
A race condition in the Linux kernel f2fs file system allows local users with low privileges to trigger kernel panics and achieve high impact.

Executive Summary:
A race condition vulnerability in the Linux kernel f2fs implementation affects local users, creating a risk of kernel panics and full system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63813

Affected Software: Linux Kernel

Affected Versions: Linux Kernel 5a4d3968cf820686400fc757a4512dcaddd84846 up to (excluding) 1991d49433e90b2202de2fe90be3c24161873d7c, 9609dd704725a40cd63d915f2ab6c44248a44598 up to (excluding) 6e035dae44154af4dd7bdb8ef7a1118c0b5f17b6, 9609dd704725a40cd63d915f2ab6c44248a44598 up to (excluding) ccaba785821970f422c47770331c7e3271763f17

Vulnerability: This is a race condition in the f2fs file system folio management functions, requiring local access with low privileges and no user interaction.

Business Impact

Successful exploitation of this vulnerability can lead to repeated kernel panics, resulting in denial of service and potential system compromise. The CVSS score of 7.8 indicates a high severity rating, driven by the potential for complete loss of confidentiality, integrity, and availability at the local operating system level.

Remediation Plan

Immediate Action: Update the Linux kernel to version 7.1.3 or later, or apply the corresponding upstream fix commits.

Proactive Monitoring: Monitor system logs for recurring kernel panics, trace dumps, or unexpected reboots associated with f2fs storage partitions.

Compensating Controls: Restrict local shell access to trusted users and limit the use of f2fs formatted partitions until patches can be applied.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw exists due to a race condition during garbage collection and folio eviction under high partition utilization.

Analyst Recommendation

Administrators must prioritize updating vulnerable Linux kernel packages to the patched versions immediately. Applying the latest kernel updates eliminates the underlying race condition and prevents stability failures caused by f2fs partition exhaustion.

Description Summary:
A flaw in the Linux kernel f2fs file system handling of FI_NO_EXTENT flags allows local users with low privileges to achieve high impact confidentiality, integrity, and availability compromise.

Executive Summary:
A local vulnerability in the Linux kernel f2fs file system handling can allow an authenticated low-privileged attacker to compromise system integrity and availability.

Vulnerability Details

CVE-ID: CVE-2026-63812

Affected Software: Linux Kernel

Affected Versions: Linux Kernel 42dd1c91f993431d0b399502479d00e6ad1bca71 up to (excluding) 7e4d8f98be63f98856a5176b9188dada6e7ba9ee, ab1eaf9d5c99042f5b0243bf67a06283a4c0757f up to (excluding) 58a5deb220bcac4c73bf58954c0845644c997487, b0e4395870eb3441ddc959f6710b5f6ca61aff26 up to (excluding) 20190e498057997532c7f186d081011f18e0a462, ed78aeebef05212ef7dca93bd931e4eff67c113f up to (excluding) edf12cbeeeabe799bd2ee21fdb5c336cce6fbad7, ed78aeebef05212ef7dca93bd931e4eff67c113f up to (excluding) 1f70ddb28a3c71df124da5fa4040c808116d6bb9, 0559a0e962aacbb47519e26ee663be04b72dcb92, 6.6.140 up to (excluding) 6.6.144, 6.12.88 up to (excluding) 6.12.95

Vulnerability: This is an improper handling flaw within the f2fs file system extent tree management function __destroy_extent_node() in the Linux kernel, requiring low privileges and no user interaction.

Business Impact

A successful exploit of this vulnerability could lead to severe file system corruption, unauthorized data access, and complete system instability or denial of service. The high CVSS score of 7.8 reflects the dangerous potential for an attacker with local access to escalate their foothold and compromise the entire operating system.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.6.144, 6.12.95, 6.18.38, 7.1.3, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for file system errors, kernel panics, or warnings related to sanity_check_extent_cache and f2fs consistency checks.

Compensating Controls: Restrict local system access to trusted users and implement strict least-privilege policies to prevent unauthorized low-level interactions with vulnerable file systems.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability.

Analyst Recommendation

Given the high severity score and potential for system-wide compromise, administrators must prioritize scheduling kernel updates for all affected Linux environments. Applying the official patches provided by the vendor is the only definitive way to resolve the underlying logic flaw in the f2fs extent cache management.

Description Summary:
The WP Maps WordPress plugin contains a path traversal vulnerability that allows authenticated users with low privileges to access or manipulate restricted files on the server.

Executive Summary:
A path traversal vulnerability in the WP Maps WordPress plugin allows authenticated attackers to potentially access or modify sensitive files on the underlying server.

Vulnerability Details

CVE-ID: CVE-2026-6381

Affected Software: WordPress WP Maps

Affected Versions: All versions before 4.9.3

Vulnerability: This vulnerability (CWE-22) involves improper limitation of a pathname to a restricted directory. It requires an authenticated user with low privileges to trigger, potentially allowing the attacker to bypass directory restrictions.

Business Impact

A path traversal vulnerability can allow an attacker to read sensitive configuration files or overwrite critical system files, potentially leading to full site compromise or Remote Code Execution (RCE). Given the CVSS score of 7.5, this poses a substantial risk to the confidentiality and integrity of the hosting environment.

Remediation Plan

Immediate Action: Update the "WP Maps – Google Maps, OpenStreetMap, Mapbox, Store Locator, Listing, Directory & Filters" plugin to version 4.9.3 or later.

Proactive Monitoring: Inspect server file access logs for directory traversal attempts (e.g., sequences like "../") targeting the plugin's file handling functions.

Compensating Controls: Ensure the web server process runs with the least privilege necessary, limiting the impact if a path traversal vulnerability is successfully exploited.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of May 19, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The requirement for authentication suggests that an attacker must first obtain a foothold in the application.

Analyst Recommendation

Administrators must update the WP Maps plugin to version 4.9.3 immediately. While the vulnerability requires authentication, the potential for sensitive file access makes it a high-priority update for any WordPress environment using this plugin.

Description Summary:
A memory management vulnerability in the Linux kernel bpf subsystem allows local users to cause memory corruption and potential system compromise.

Executive Summary:
A memory corruption vulnerability in the Linux kernel bpf subsystem allows authenticated local users to achieve high system impact.

Vulnerability Details

CVE-ID: CVE-2026-63809

Affected Software: Linux Kernel

Affected Versions: b7925acd82926ebbf94a0f0783a3961f4e558856 up to (excluding) d0a81ed5ff5d0f9c3f63a4f9e5a4642c363ecd3e, 4508943794efdd94171549c0bd52810e2f4ad9fe up to (excluding) 77355ef7a9f6b0d2bdf65be3b37f2c1f365e20d2, and other specified development trees

Vulnerability: This is an improper memory management flaw within the bpf subsystem where temporary sysctl write buffers allocated via kvzalloc are incorrectly freed using kfree instead of kvfree, requiring low local privileges.

Business Impact

Successful exploitation of this flaw can lead to severe kernel memory corruption, potentially allowing a local attacker to execute arbitrary code, escalate privileges, or cause a complete denial of service via system crashes. While the CVSS score of 7.8 reflects a high severity rating constrained primarily by the requirement for local access, the potential for total kernel compromise makes prompt remediation vital for protecting host integrity.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.10.260, 5.15.211, 6.1.177, 6.6.144, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for kernel panics, segmentation faults, or unexpected reboots that may indicate memory corruption attempts.

Compensating Controls: Restrict local shell access and apply the principle of least privilege to ensure only trusted users can execute code on the host.

Exploitation Status

Public Exploit Available: No — exploit_available (false / unknown)

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw was discovered through internal experimental kernel analysis tooling.

Analyst Recommendation

Given the severity of potential kernel memory corruption, administrators must prioritize updating affected Linux kernel packages to the patched versions as soon as they are made available by distribution maintainers. Applying these updates promptly ensures the prevention of local privilege escalation and maintains overall host security.

Description Summary:
A use-after-free vulnerability in the Linux kernel exFAT file system driver allows for potential memory corruption and arbitrary code execution via a specially crafted exFAT image.

Executive Summary:
A critical use-after-free vulnerability in the Linux kernel exFAT driver, triggered by malicious file system images, poses a significant risk of system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63808

Affected Software: Linux Kernel

Affected Versions: 5.7 and subsequent versions prior to 5.10.260, 5.15.211, and 6.1.177

Vulnerability: The flaw resides in the exfat_find_dir_entry function, where a buffer head is released before its data is accessed. An unauthenticated attacker can exploit this race condition using a crafted exFAT image to trigger a use-after-free state, leading to potential kernel-level memory corruption.

Business Impact

This vulnerability carries a CVSS score of 9.8, reflecting its potential for remote code execution with kernel-level privileges. Successful exploitation could lead to total system compromise, unauthorized data access, and persistent denial-of-service conditions, severely impacting business continuity and data integrity.

Remediation Plan

Immediate Action: Apply the vendor-supplied kernel patches by updating to version 5.10.260, 5.15.211, 6.1.177, or 6.6.144 (or later) immediately.

Proactive Monitoring: Monitor system logs for kernel panics or unusual memory access errors, particularly when mounting external storage devices.

Compensating Controls: Restrict the mounting of untrusted or unknown exFAT-formatted storage devices on critical production systems as a preventative measure.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of July 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability is inherently exploitable via crafted disk images, the requirement for a specific file system structure limits the likelihood of opportunistic internet-wide attacks.

Analyst Recommendation

Given the critical severity of this kernel-level flaw, immediate patching is essential to prevent potential system-wide compromise. Security teams should prioritize updating Linux kernel deployments and exercise caution when interacting with untrusted exFAT media until patches are applied across the environment.

Description Summary:
A memory management flaw exists in the Linux kernel KVM x86 shadow MMU, which fails to correctly validate memory slots before checking hugepage mapping levels.

Executive Summary:
A memory validation vulnerability in the Linux kernel KVM subsystem could allow a local authenticated attacker to trigger memory corruption or privilege escalation.

Vulnerability Details

CVE-ID: CVE-2026-63807

Affected Software: Linux Kernel

Affected Versions: Linux kernel versions prior to 5.15.211, 6.1.177, 6.6.144, and 6.12.95

Vulnerability: This is a memory management error in the shadow MMU component. An authenticated local user can trigger this flaw by manipulating hugepage mappings, potentially leading to unauthorized memory access or system instability.

Business Impact

Successful exploitation allows a local attacker to achieve privilege escalation or cause a denial of service, compromising system integrity and availability. Given the CVSS score of 8.8, this flaw represents a significant risk to high-security environments, such as multi-tenant cloud infrastructure, where KVM is used to isolate guest environments.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.15.211, 6.1.177, 6.6.144, 6.12.95, or later as provided by your distribution vendor.

Proactive Monitoring: Monitor kernel logs for recurring memory faults or unexpected KVM-related crashes that may indicate exploitation attempts.

Compensating Controls: Restrict local user access to the system and limit the capability to interact with KVM interfaces to trusted administrators only.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is technically complex, requiring specific local access, but the high CVSS score reflects the severe impact of successful kernel-level exploitation.

Analyst Recommendation

The vulnerability poses a high risk to system stability and security. Administrators should prioritize patching the Linux kernel across all affected environments to prevent potential local privilege escalation and memory corruption attacks.

Description Summary:
A guest-triggerable BUG_ON() flaw in the Linux kernel KVM subsystem allows local users to cause a denial of service via ioeventfd datamatch operations.

Executive Summary:
A guest-triggerable kernel panic flaw in the Linux kernel KVM subsystem affects multiple kernel branches and poses a high risk of denial of service.

Vulnerability Details

CVE-ID: CVE-2026-63806

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions up to excluding 2.6.32, 5.10.261, 5.15.212, 6.1.178, and 6.6.145

Vulnerability: This is a kernel-level denial of service vulnerability involving improper handling of potentially unaligned memory accesses in the KVM ioeventfd datamatch mechanism, requiring no user interaction and no initial privileges from a local guest perspective.

Business Impact

The exploitation of this vulnerability leads directly to a kernel panic, resulting in unexpected hypervisor or guest crashes and severe system downtime. With a CVSS score of 7.1, the high severity rating reflects the potential for complete service interruption of virtualized environments, disrupting business-critical applications and operations.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.10.261, 5.15.212, 6.1.178, 6.6.145, or later depending on the active release branch.

Proactive Monitoring: Monitor hypervisor system logs for unexpected kernel panics, stack traces related to KVM ioeventfd, or sudden guest reboots.

Compensating Controls: Restrict local guest access and isolate untrusted virtual machines where kernel updates cannot be applied immediately.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw originates from a long-standing reachability issue in the KVM emulator when handling specific page-splitting MMIO and ioeventfd interactions.

Analyst Recommendation

Administrators must prioritize updating vulnerable Linux kernel packages to the patched versions immediately to eliminate the risk of guest-triggered kernel panics. Failure to patch leaves virtualized infrastructures exposed to potential denial of service attacks originating from compromised or untrusted virtual machine guests.

Description Summary:
A type confusion flaw in the Linux kernel cryptographic subsystem allows local authenticated users to cause a kernel oops or potential system compromise.

Executive Summary:
A type error in the Linux kernel crypto driver affects the cryptographic subsystem, introducing risks of denial of service or local privilege escalation.

Vulnerability Details

CVE-ID: CVE-2026-63805

Affected Software: Linux Kernel

Affected Versions: bfd9efddf990d152dc9912fdca520c5e1e19e1e2 up to (excluding) 8d8507a457667f23477a15496b91908a5b5b7cf3, 833033e6e55acf11304ff7bbbdf18351d139c281, 4e67f504ee9ded15e256b64f4fde150e917381d7; versions prior to 5.5

Vulnerability: This is a type mismatch vulnerability involving the nx_crypto_ctx_exit function and incorrect pointer types passed from crypto_shash_ctx, requiring low local privileges to trigger.

Business Impact

Successful exploitation of this flaw can result in a kernel panic, leading to unexpected system reboots and denial of service. With a CVSS score of 7.8, the vulnerability poses a high risk to host availability and data integrity, as a local attacker could leverage the instability to impact overall system operations.

Remediation Plan

Immediate Action: Update the Linux kernel to version 6.18.38, 7.1.3, or later depending on the active release branch.

Proactive Monitoring: Monitor system logs for kernel BUG messages, unexpected kernel data access faults, or crash dumps originating from the cryptographic subsystem.

Compensating Controls: Restrict local shell access and limit unprivileged user capabilities on vulnerable hosts to reduce the attack surface.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw stems from an incorrect pointer type passed during cryptographic context destruction.

Analyst Recommendation

Administrators must prioritize updating vulnerable Linux kernel packages to the patched versions immediately. Applying these updates eliminates the type confusion vulnerability and prevents potential kernel crashes and associated service disruptions.

Description Summary:
A use-after-free vulnerability exists in the Linux kernel block cgroup subsystem due to a race condition during concurrent release operations.

Executive Summary:
A high-severity use-after-free vulnerability in the Linux kernel block cgroup subsystem allows local authenticated attackers to achieve arbitrary code execution or system compromise.

Vulnerability Details

CVE-ID: CVE-2026-63802

Affected Software: Linux Kernel

Affected Versions: Linux Kernel versions 6.3.9 up to 6.4, with fixes backported to stable series

Vulnerability: This is a use-after-free vulnerability caused by a race condition in __blkcg_rstat_flush() when multiple block cgroups are released concurrently, requiring local authenticated access with low privileges.

Business Impact

A successful exploitation of this vulnerability could lead to local privilege escalation, arbitrary code execution, or complete system instability resulting in denial of service. The CVSS score of 7.8 reflects the high potential impact on system confidentiality, integrity, and availability, even though the attack vector requires local access.

Remediation Plan

Immediate Action: Update the Linux kernel to patched versions such as 6.6.144, 6.12.95, 6.18.38, 7.1.3, or later depending on the active distribution branch.

Proactive Monitoring: Monitor system logs for kernel panics, segmentation faults, or anomalous crash reports that might indicate memory corruption attempts.

Compensating Controls: Restrict local shell access and apply the principle of least privilege to minimize the risk of unauthorized users executing malicious code locally.

Exploitation Status

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

Analyst Notes: As of Jul 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw presents an inherent local stability and memory corruption risk due to race conditions during resource cleanup.

Analyst Recommendation

Administrators managing systems running affected Linux kernel versions must prioritize applying the latest upstream kernel updates. Because local attackers can potentially trigger memory corruption and escalate privileges, patching the kernel promptly is critical to maintaining system security.

Description Summary:
A use-after-free vulnerability in the Linux kernel TIPC (Transparent Inter-Process Communication) protocol allows for memory corruption during AEAD decryption due to improper reference counting.

Executive Summary:
A high-severity use-after-free vulnerability in the Linux kernel TIPC protocol may allow a local attacker to cause a system crash or escalate privileges.

Vulnerability Details

CVE-ID: CVE-2026-63801

Affected Software: Linux Kernel

Affected Versions: Linux versions prior to 5.10.260, 5.15.211, 6.1.177, and 6.6.144

Vulnerability: The flaw occurs in tipc_aead_decrypt() where the system fails to take a reference on the network namespace before performing decryption. This leads to a slab-use-after-free scenario if the network namespace is destroyed while a decryption operation is in progress.

Business Impact

TIPC is frequently used for high-speed inter-process communication in distributed systems. A use-after-free condition can be weaponized to achieve arbitrary code execution or cause significant instability, threatening the integrity of inter-process communications and the security of the underlying host.

Remediation Plan

Immediate Action: Update the Linux kernel to version 5.10.260, 5.15.211, 6.1.177, or 6.6.144.

Proactive Monitoring: Monitor for kernel-level memory errors or unusual behavior in processes utilizing the TIPC protocol.

Compensating Controls: If the TIPC protocol is not required for system operations, disable the tipc kernel module to eliminate the attack surface entirely.

Exploitation Status

Public Exploit Available: No (exploit_available: false)

Analyst Notes: As of July 21, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. Use-after-free vulnerabilities in the kernel are inherently complex to exploit reliably but represent a high security risk.

Analyst Recommendation

Given the nature of the TIPC protocol and its role in process communication, this vulnerability should be treated with high urgency. Organizations should verify if their kernels are affected and apply the recommended patches to prevent potential privilege escalation or system compromise.

Description Summary:
A use-after-free vulnerability exists in the Linux kernel pNFS implementation due to incorrect ordering of object cleanup and tracepoint access in the pnfs_update_layout function.

Executive Summary:
A critical use-after-free vulnerability in the Linux kernel pNFS subsystem may allow unauthenticated attackers to trigger system crashes or execute arbitrary code.

Vulnerability Details

CVE-ID: CVE-2026-63800

Affected Software: Linux Kernel

Affected Versions: Versions prior to 5.10.260, 5.15.211, 6.1.177, and 6.6.144

Vulnerability: The vulnerability occurs within the pNFS client code when handling layout returns. An incorrect sequence of operations leads to a use-after-free condition where a tracepoint attempts to access data structures that have already been freed, which can be triggered by an unauthenticated network user.

Business Impact

The flaw carries a CVSS score of 9.8, indicating a critical severity level due to its potential for remote code execution and system instability. Successful exploitation could lead to full system compromise, loss of data integrity, and significant operational downtime, posing a substantial risk to enterprise environments relying on NFS storage.

Remediation Plan

Immediate Action: Update your Linux kernel to the versions specified in the fixed_packages metadata, specifically 5.10.260, 5.15.211, 6.1.177, or 6.6.144, depending on your current distribution branch.

Proactive Monitoring: Monitor system logs for kernel panic events or unexpected segmentation faults, which may indicate attempted exploitation of kernel-level memory corruption.

Compensating Controls: Restrict network access to NFS services to trusted IP addresses using firewall rules or network segmentation to minimize the exposure of the vulnerable pNFS interface.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of July 19, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. While the vulnerability is inherently dangerous due to its location in the kernel, the complexity of triggering the specific race condition typically requires precise timing.

Analyst Recommendation

Given the critical nature of this kernel vulnerability, administrators must prioritize patching as part of their next maintenance cycle. Because the issue resides in core kernel code, a system reboot will be required to apply the fix, so coordinate with stakeholders to minimize service disruption while ensuring the environment is secured against potential remote exploitation.