CVE entry · CVE-2022-0492
CVE-2022-0492: Linux Kernel Improper Authentication Vulnerability
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
- Actively exploited: added to CISA’s KEV catalog on June 2, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: June 5, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Linux Kernel, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
Other Linux vulnerabilities
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Linux Kernel Out-of-Bounds Write Vulnerability
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Linux Kernel Race Condition Vulnerability
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Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
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Linux Kernel Unspecified Vulnerability
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Linux Kernel Out-of-Bounds Write Vulnerability
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Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability