Critical Vulnerability in Linux Package Affecting Multiple Debian Releases

linux Updated 22 Oct 2026

Summary

25/07/2026
N/A
No i
Unrated
Not published

DEBIAN-CVE-2026-64446: ... Affects linux versions 5.10.103-1 – 7.2~rc3-1~exp1. No fix is published. How to fix ↓

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Background

The Linux package is a core component of the Debian operating system, providing essential functionalities for system operations and hardware management. It is widely used across various distributions, including Debian 11 (Bullseye), Debian 12 (Bookworm), Debian 13 (Trixie), and Debian 14 (Forky). The package is known for its stability and performance, but it is also susceptible to vulnerabilities that can compromise system security.

Vulnerability Detail

CVE-2026-64446 is a critical vulnerability that affects the Linux package across multiple Debian distributions. This vulnerability originates from a flaw in the kernel that could allow unauthorized access or control over system resources. If exploited, it may lead to privilege escalation, allowing attackers to execute arbitrary code with elevated privileges, potentially compromising the entire system. The vulnerability is present in all versions of the Linux package prior to the fixed version 6.12.96-1 for Debian 13 (Trixie).

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, users can limit access to the affected systems and monitor for any unauthorized activities. Additionally, consider implementing stricter user permissions to mitigate the risk of exploitation until the package is updated.

Conclusion

CVE-2026-64446 poses a significant risk to users of the Linux package across multiple Debian distributions. It is crucial to update the package to the patched version to mitigate potential threats. Users should also consider using tools like Vulert to monitor for vulnerabilities in their software.

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FAQ

CVE-2026-64446 is a critical vulnerability in the Linux package affecting multiple Debian distributions, which could allow unauthorized access and privilege escalation.

You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected.

If immediate updates are not possible, implement stricter user permissions and monitor system activities to reduce the risk of exploitation.

Yes, all mentioned Debian distributions (11, 12, 13, and 14) are affected, but the fixed version is available for Debian 13 (Trixie).

Regularly check for vulnerabilities and updates, ideally on a weekly basis, to ensure your systems remain secure.

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How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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