01 Record

CVE-2022-42721

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

MediumPUBLISHEDCNA: mitre

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 46.2% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2022-10-13 00:00Z3 YR AGO

Last updated

2025-05-15 20:45Z1 YR AGO

Reserved

2022-10-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

f078a10539c9a9d49835c1d412a9c879c30ba57587764e7c3c1a1475a1968eb4

05 Affected products

VendorProductVersionsPlatforms

debiandebian_linuxNot specified—

fedoraprojectfedoraNot specified—

linuxlinux_kernelNot specified—

redhatenterprise_linuxNot specified—

redhatrhel_eusNot specified—

redhatrhev_hypervisorNot specified—

06 References

bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1204060
www.openwall.comhttp://www.openwall.com/lists/oss-security/2022/10/13/5
git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=bcca852027e5878aec911a347407ecc88d6fff7f
lists.fedoraproject.orgFEDORA-2022-2cfbe17910https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/vendor-advisory
lists.fedoraproject.orgFEDORA-2022-b948fc3cfbhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/vendor-advisory
lists.fedoraproject.orgFEDORA-2022-1a5b125ac6https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/vendor-advisory
www.debian.orgDSA-5257https://www.debian.org/security/2022/dsa-5257vendor-advisory
lists.debian.org[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security updatehttps://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlmailing-list
packetstormsecurity.comhttp://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html
security.netapp.comhttps://security.netapp.com/advisory/ntap-20230203-0008/

01 Record index

CVE-2022-42721

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2022-42721

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References