CVE-2022-42719

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.

CVSS v3.1 NVD

8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.35% chance of exploitation in the next 30 days, 71st percentile

Published

2022-10-13

Updated

2026-10-14

Proof-of-concept exploits (2)

• http://www.openwall.com/lists/oss-security/2022/10/13/5
• PurpleVsGreen/beacown131★ · 2022-10-27

Security advisories

• https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=ff05d4b4…
• http://www.openwall.com/lists/oss-security/2022/10/13/2
• https://bugzilla.suse.com/show_bug.cgi?id=1204051
• https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
• https://www.debian.org/security/2022/dsa-5257

References

• CVE Record
• NVD entry

Related

• CVE-2022-41674
• CVE-2022-42720
• CVE-2022-42722