CVE-2023-53257: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check S1G action frame size Before checking the action code, check that it even exists in the frame.

Affected products

• Linux Linux Kernel: before 5.15.133 (fixed in 5.15.133); from 5.16, before 6.1.55 (fixed in 6.1.55); from 6.2, before 6.5.5 (fixed in 6.5.5)

Published 2025-09-15. Last modified 2026-08-04.