What is CVE-2022-0492?

CVE-2022-0492 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2022-0492 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.

What is the CVSS score for CVE-2022-0492?

CVE-2022-0492 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-0492?

No patch is currently available for CVE-2022-0492. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-0492 actively exploited?

Yes — CVE-2022-0492 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild with a CVSS score of 7.8 (High severity).

CVE-2022-0492

High KEV — Actively Exploited

A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.

Package Linux Kernel

Published 2022-03-03

Last modified 2026-06-03

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-287

CVE-2022-0492 is classified as CWE-287

See CWE-287 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2022-0492 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html

Third Party Advisory VDB Entry
Packet Storm
http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html

Third Party Advisory VDB Entry
Packet Storm
http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html

Exploit VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20220419-0002/

Third Party Advisory
Debian Security
https://www.debian.org/security/2022/dsa-5095

Third Party Advisory
Debian Security
https://www.debian.org/security/2022/dsa-5096

Third Party Advisory
CISA
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0492

US Government Resource
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2051505
Patch
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af
Patch

Details

CVE ID CVE-2022-0492

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2022-03-03

Modified 2026-06-03

KEV Yes

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-0492?

CVE-2022-0492 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2022-0492 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild.
What is the CVSS score for CVE-2022-0492?

CVE-2022-0492 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-0492?

No patch is currently available for CVE-2022-0492. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-0492 actively exploited?

Yes — CVE-2022-0492 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. It carries a CVSS score of 7.8 (High severity).