CVE-2022-42719

Name: CVE-2022-42719
Creator: NVD / NIST
Published: 2022-10-13T23:15:11.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2022-42719 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.23%

65.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 5.2, < 5.4.219
Linux	Linux Kernel	>= 5.5, < 5.10.149
Linux	Linux Kernel	>= 5.11, < 5.15.74
Linux	Linux Kernel	>= 5.16, < 5.19.16
Linux	Linux Kernel	>= 6.0, < 6.0.2
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36
Fedoraproject	Fedora	37
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
http://www.openwall.com/lists/oss-security/2022/10/13/2Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/10/13/5Exploit, Mailing List, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1204051Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=ff05d4b45dd89b922578dac497dcabf57cf771c6Mailing List, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
https://security.netapp.com/advisory/ntap-20230203-0008/
https://www.debian.org/security/2022/dsa-5257Third Party Advisory
http://packetstormsecurity.com/files/171005/Kernel-Live-Patch-Security-Notice-LNS-0091-1.html
http://www.openwall.com/lists/oss-security/2022/10/13/2Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/10/13/5Exploit, Mailing List, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1204051Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=ff05d4b45dd89b922578dac497dcabf57cf771c6Mailing List, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
https://security.netapp.com/advisory/ntap-20230203-0008/
https://www.debian.org/security/2022/dsa-5257Third Party Advisory

Timeline

Published: Oct 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-42719?

How severe is CVE-2022-42719?

CVE-2022-42719 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2022-42719?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-42719?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST