CVE-2022-42719: Debian Linux

High severity, CVSS 8.8. EPSS: 1.4% chance of exploitation in the next 30 days.

A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 35 only; version 36 only; version 37 only
• Linux Linux Kernel: from 5.2, before 5.4.219 (fixed in 5.4.219); from 5.5, before 5.10.149 (fixed in 5.10.149); from 5.11, before 5.15.74 (fixed in 5.15.74); from 5.16, before 5.19.16 (fixed in 5.19.16); from 6.0, before 6.0.2 (fixed in 6.0.2)

Published 2022-10-13. Last modified 2026-06-17.