Critical Vulnerability in Linux Package Affecting Debian Versions 11-14
Summary
DEBIAN-CVE-2026-63846: ... Affects linux versions 5.10.103-1 – 7.2~rc3-1~exp1. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
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 Debian distributions, including Bullseye (11), Bookworm (12), Trixie (13), and Forky (14). This vulnerability poses a significant risk to users relying on these versions for stability and security.
Vulnerability Detail
CVE-2026-63846 is a critical vulnerability that affects the Linux package across multiple Debian distributions. The vulnerability originates from improper handling of certain system calls, which could allow an attacker to execute arbitrary code with elevated privileges. This could lead to unauthorized access, data breaches, or system compromise, making it imperative for users to address this issue promptly.
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 system or disable certain functionalities until the package is updated. However, this is not a permanent solution and should only be used as a stopgap measure.
Conclusion
CVE-2026-63846 represents a significant security risk for users of the Linux package across multiple Debian versions. Prompt action is required to update to the patched versions to mitigate potential threats. Utilizing tools like Vulert can help in monitoring vulnerabilities effectively.
See every vulnerability recorded for linux →
FAQ
CVE-2026-63846 is a critical vulnerability affecting the Linux package in Debian distributions, allowing potential unauthorized access and system compromise.
The vulnerability affects Debian versions 11 (Bullseye), 12 (Bookworm), 13 (Trixie), and 14 (Forky).
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without needing to sign up.
If you cannot update immediately, consider limiting access to the affected system and disabling certain functionalities as a temporary workaround.
More information can be found in the official Debian security advisories and the CVE database.
References
Related vulnerabilities
Recent vulnerabilities recorded for linux.