What is CVE-2022-42721?

CVE-2022-42721 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Infinite Loop flaw (CWE-835). CVE-2022-42721 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-42721?

CVE-2022-42721 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-42721?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-42721 patch availability.

Is CVE-2022-42721 actively exploited?

CVE-2022-42721 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Infinite Loop (CWE-835)?

The product contains an iteration that does not exit even when it should. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/835.html

CVE-2022-42721

Medium

A list management bug in BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to corrupt a linked list and, in turn, potentially execute code.

Package Linux Kernel

Published 2022-10-14

Last modified 2025-05-15

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-835

CVE-2022-42721 is a Infinite Loop vulnerability

What is Infinite Loop?

The product contains an iteration that does not exit even when it should. Learn more on MITRE CWE

References

10 total

Openwall
http://www.openwall.com/lists/oss-security/2022/10/13/5

Exploit Mailing List Third Party Advisory
Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=bcca852027e5878aec911a347407ecc88d6fff7f

Mailing List Patch Vendor Advisory
SUSE
https://bugzilla.suse.com/show_bug.cgi?id=1204060

Issue Tracking Patch Third Party Advisory
Packet Storm
http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html

Third Party Advisory VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Mailing List Third Party Advisory

Showing 5 of 10 references View all on NVD

Details

CVE ID CVE-2022-42721

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2022-10-14

Modified 2025-05-15

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-42721?

CVE-2022-42721 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Infinite Loop flaw (CWE-835) . CVE-2022-42721 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-42721?

CVE-2022-42721 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-42721?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-42721 patch availability.
Is CVE-2022-42721 actively exploited?

No. CVE-2022-42721 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.