Critical Vulnerability in Linux Package Affecting Multiple Debian Releases

linux Updated 22 Oct 2026

Summary

27/05/2026
N/A
No i
Unrated
Not published

DEBIAN-CVE-2026-45857: ... Affects linux versions 5.10.103-1 – 7.1~rc5-1~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-2026-45857 is a critical vulnerability that affects the Linux package across multiple Debian distributions. The vulnerability originates from a flaw in the kernel that could allow an attacker to execute arbitrary code with elevated privileges. This could lead to unauthorized access to sensitive data, system compromise, and potential exploitation of other vulnerabilities. The issue has been introduced in all versions of the Linux package and has specific fixed versions for Debian 12, 13, and 14.

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 suspicious activities until the package is updated. Additionally, disabling unnecessary services and restricting user permissions can help mitigate the risk.

Conclusion

CVE-2026-45857 represents a significant security risk for users of the Linux package across multiple Debian distributions. It is crucial to update to the patched versions as soon as possible to protect against potential exploits. Utilizing tools like Vulert can help in monitoring vulnerabilities effectively.

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FAQ

CVE-2026-45857 is a critical vulnerability in the Linux package affecting multiple Debian distributions, allowing potential unauthorized access and code execution.

The vulnerability affects Debian 11 (Bullseye), Debian 12 (Bookworm), Debian 13 (Trixie), and Debian 14 (Forky).

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 without any signup.

If immediate updates are not possible, consider implementing temporary workarounds such as limiting access and monitoring for suspicious activities.

Regularly check for vulnerabilities, ideally on a weekly basis, and ensure that your systems are updated promptly to mitigate risks.

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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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