CVE-2022-0492

CVE-2022-0492 is a high-severity vulnerability in Redhat Codeready Linux Builder with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-06-02). The underlying weakness is classified as CWE-862.

Key facts

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.

Frequently asked questions

What is CVE-2022-0492?
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.
How severe is CVE-2022-0492?
CVE-2022-0492 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-0492 being actively exploited?
Yes. CVE-2022-0492 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-06-02, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-0492?
CVE-2022-0492 primarily affects Redhat Codeready Linux Builder. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-0492?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-0492 have an EU (EUVD) identifier?
Yes. CVE-2022-0492 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-15629. It is also flagged as exploited in the EUVD (since 2026-06-02).
When was CVE-2022-0492 published?
CVE-2022-0492 was published on 2022-03-03 and last updated on 2026-06-17.

References

Affected products (41)

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