Linux kernel bug can crash services

Published September 11, 2026

Linux Kernel has a CERT-Bund advisory for CVE-2026-53366 in versions before 6.6.144. An attacker can exploit a vulnerability in the Linux Kernel to carry out a denial of service attack.

Severity
Not scoredNo CVSS score recorded
Fix
Fixed in 6.6.144Fix recorded 3 days ago
Affected versions
before 6.6.144
Affects
Linux Kernel
Exploited
Not confirmedNo confirmation recorded

How it works

An attacker can exploit a vulnerability in the Linux Kernel to carry out a denial of service attack.

What to do

Check your Linux Kernel version. If it is before 6.6.144, this advisory applies.

Update Linux Kernel to 6.6.144 or newer.

Technical details

CERT-Bund describes Linux Kernel as Der Kernel stellt den Kern des Linux Betriebssystems dar. An attacker can exploit a vulnerability in the Linux Kernel to carry out a denial of service attack. The advisory tracks CVE-2026-53366. In CERT-Bund's CSAF data, affected versions are before 6.6.144, before 6.12.95, before 6.18.38, before 7.1.3, and the fixed version is 6.6.144, 6.12.95, 6.18.38, 7.1.3.

Affected operating systems listed by CERT-Bund: Linux.

References

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