Critical Vulnerability in Linux Package: CVE-2026-45865 Affects Debian Systems

linux Updated 22 Oct 2026

Summary

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

DEBIAN-CVE-2026-45865: ... 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 essential functionalities for managing system resources, hardware interactions, and user processes. 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-2026-45865 is a critical vulnerability identified in the Linux package that could potentially allow unauthorized access or control over affected systems. The vulnerability originates from improper handling of certain system calls, which may lead to privilege escalation or denial of service. If exploited, attackers could gain elevated privileges, compromising the integrity and confidentiality of the system.

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 a temporary workaround, users may consider restricting access to sensitive system functionalities or disabling certain features until the package can be updated. However, this is not a permanent solution and should only be used as a stopgap measure.

Conclusion

CVE-2026-45865 represents a significant security risk for Debian users of the Linux package. It is crucial to update to the patched versions to mitigate potential threats. Regular monitoring and vulnerability management, such as using Vulert, can help maintain system security.

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FAQ

CVE-2026-45865 is a critical vulnerability in the Linux package affecting Debian systems, which could allow unauthorized access or control.

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.

Exploitation of this vulnerability could lead to privilege escalation, allowing attackers to gain unauthorized access and control over the system.

You can update your Linux package using the terminal commands provided in the 'how_to_fix' section, ensuring you install the patched version for your specific Debian distribution.

While a temporary workaround involves restricting access to sensitive functionalities, it is recommended to update the package as soon as possible for a permanent fix.

Related vulnerabilities

Recent vulnerabilities recorded for linux.

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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