Critical Vulnerability in Linux Package Affecting Multiple Debian Versions
Summary
DEBIAN-CVE-2026-43239: ... Affects linux versions 5.10.103-1 – 7.0.3-1. 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, hardware management, and user interactions. It is widely used across various Debian versions, including 11, 12, 13, and 14. This package is crucial for maintaining system stability and performance, making it a prime target for vulnerabilities that could compromise system integrity.
Vulnerability Detail
CVE-2026-43239 is a critical vulnerability affecting the Linux package across multiple Debian versions. It originates from a flaw in the kernel that could allow unauthorized access or manipulation of system resources. The ramifications of this vulnerability could lead to system crashes, unauthorized data access, or even complete system compromise. The vulnerability was introduced in all versions of the Linux package and has specific fixed versions for Debian 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 of now, no specific workarounds have been provided for this vulnerability. It is highly recommended to apply the updates as soon as they are available to mitigate risks.
Conclusion
CVE-2026-43239 presents a significant risk to users of the Linux package across multiple Debian versions. It is essential to stay informed about this vulnerability and apply the necessary updates to ensure system security and integrity.
See every vulnerability recorded for linux →
FAQ
CVE-2026-43239 is a critical vulnerability in the Linux package that affects multiple Debian versions, potentially allowing unauthorized access to system resources.
The vulnerability affects Debian versions 11, 12, 13, and 14.
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.
While no specific workarounds are available, it is crucial to prioritize updating your package to the fixed versions as soon as possible to mitigate risks.
More information can be found in the Debian security advisories and the official CVE database.
References
Related vulnerabilities
Recent vulnerabilities recorded for linux.