How severe is CVE-2022-0492?

CVE-2022-0492 has a CVSS score of 7.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-0492?

Affected package information for CVE-2022-0492 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2022-0492?

Upgrade the affected component to the fixed release for CVE-2022-0492, or apply your distribution's backported patch — distro builds are often patched at an older version number, so check your vendor's advisory rather than the upstream version alone.

How do I detect CVE-2022-0492 in my code and dependencies?

Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

How do I mitigate CVE-2022-0492 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is CVE-2022-0492 actively exploited in the wild?

Yes. There are 10 known exploit references for CVE-2022-0492, including 6 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

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

CVE-2022-0492 has an EPSS (Exploit Prediction Scoring System) score of 5.5%, placing it in the 93th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

Is CVE-2022-0492 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2022-0492 (Linux Kernel Improper Authentication Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-06-02. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-06-05. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2022-0492?

CVE-2022-0492 is classified as Improper Authentication (CWE-287), CWE-862 (CWE-862). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2022-0492 published, and has it been updated?

CVE-2022-0492 was published on March 3, 2022 and was last updated on October 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🛡️

CISA KEV · ACTIVELY EXPLOITED

HIGH severity

CVE-2022-0492 — linux

HIGH

CVE-2022-0492 is a high-severity (CVSS 7.8) Improper Authentication vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2026-06-02) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.

Also known asA-224859358PUB-A-224859358

Published

Mar 3, 2022

Updated

Oct 21, 2026

Affected

27 products

Patched

See advisory

Exploits

10 known

Exploitation data as of Oct 24, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2026-06-02. Federal agencies were required to remediate by 2026-06-05.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2022-0492.

EPSS Exploitation Probability

via FIRST.org ↗

5.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs93th percentile — riskier than 93% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2022-0492 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 395,249 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Description

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.

Affected Products

27 products · 47 configurations

ubuntu linuxcanonical

5 versions

14.0416.0418.0420.0422.04

debian linuxdebian

3 versions

9.010.011.0

fedorafedoraproject

1 version

linux kernellinux

≥ 5.16 && < 5.16.6

1 version

5.17

bootstrap osnetapp

all

h300s firmwarenetapp

all

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.