Critical Vulnerability in Linux Package Across Debian Versions: CVE-2026-43214

linux Updated 22 Oct 2026

Summary

06/05/2026
N/A
Yes i
Unrated
Not published

DEBIAN-CVE-2026-43214: ... 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 hardware and system resources. It serves as the foundation for running applications and services on Debian systems. The package is known for its stability and performance, but it is also susceptible to vulnerabilities that can compromise system security.

Vulnerability Detail

CVE-2026-43214 is a critical vulnerability affecting the Linux package across multiple Debian versions (12, 13, and 14). This vulnerability originates from a flaw in the kernel that could allow an attacker to escalate privileges, potentially leading to unauthorized access and control over the system. The ramifications of this vulnerability are severe, as it could enable attackers to execute arbitrary code with 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 of now, no specific workarounds have been provided for this vulnerability. The best course of action is to apply the available patches as soon as they are released.

Conclusion

CVE-2026-43214 represents a significant security risk for users of the Linux package across various Debian versions. It is crucial to apply the necessary updates to mitigate the risk of exploitation. Regular monitoring and timely updates are essential for maintaining system security.

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FAQ

CVE-2026-43214 is a critical vulnerability in the Linux package that affects multiple Debian versions, allowing potential privilege escalation.

You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software by simply uploading your manifest file.

Failure to address this vulnerability could lead to unauthorized access and control over your system, resulting in data breaches and system compromise.

Currently, there are no specific workarounds available. The recommended action is to apply the patch as soon as it is available.

Detailed information can be found in the Debian security advisories and on the Vulert website, which provides real-time monitoring for 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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