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CVE-2022-0492: Linux Kernel Improper Authentication Vulnerability

criticalknown exploitedpublic exploitCVE-2022-0492
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.

CSIRTS triage

vendor: Linuxproduct: KernelPrivilege escalation
What
The vulnerability allows privilege escalation via the cgroups v1 release_agent feature due to improper authentication.
Who is affected
Deployments of the Linux Kernel that utilize the cgroups v1 feature.
Urgency
Immediate remediation is necessary due to active exploitation and critical severity.
Action
Update the Linux Kernel to the latest version to address the vulnerability.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-06-02
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-0492

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-0492coverage & exploitation statusNVD · CVE.org

Recent advisories for Linux Kernel Improper

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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