Critical Vulnerability in Linux Package: CVE-2026-45946

linux Updated 22 Oct 2026

Summary

27/05/2026
N/A
Yes i
Unrated
Not published

DEBIAN-CVE-2026-45946: ... Affects linux versions < 6.1.170-1. Fixed in 6.1.170-1. How to fix ↓

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Background

The Linux package is a core component of the Debian operating system, providing the essential kernel that manages system resources and hardware interactions. It is widely used across various distributions, including Debian 12 (Bookworm), Debian 13 (Trixie), and Debian 14 (Forky). This package is crucial for system stability and performance, making its security paramount.

Vulnerability Detail

CVE-2026-45946 is a critical vulnerability affecting the Linux package across multiple Debian distributions. This vulnerability originates from a flaw in the kernel that could potentially allow an attacker to execute arbitrary code with elevated privileges. The ramifications of this vulnerability are severe, as it could lead to unauthorized access to sensitive system resources, data breaches, or complete system compromise. The vulnerability has been introduced in all versions prior to the fixed versions specified for each distribution.

How To Fix

Minimum fixed version

6.1.170-1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade linux

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Workaround

As of now, no specific workarounds have been provided for this vulnerability. It is highly recommended to apply the patches as soon as they are available to mitigate any risks associated with the vulnerability.

Conclusion

CVE-2026-45946 presents a significant security risk to 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 exploitation. Regular monitoring and updating of software packages are essential for maintaining system security.

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FAQ

CVE-2026-45946 is a critical vulnerability in the Linux package that allows potential attackers to execute arbitrary code with elevated privileges.

Debian 12 (Bookworm), Debian 13 (Trixie), and Debian 14 (Forky) are all affected by this vulnerability.

You can use tools like Vulert, which monitors and alerts for open-source vulnerabilities in your software. You can check your application against this vulnerability using the Vulert playground without any signup.

Not addressing this vulnerability could lead to unauthorized access, data breaches, and potential system compromise, putting your data and system integrity at risk.

It is recommended to regularly check for updates and apply them promptly to ensure your system remains secure against known vulnerabilities.

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How To Fix

Minimum fixed version

6.1.170-1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade linux

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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