CVE-2022-0492
HIGH severity · CVSS 7.8 · Improper authentication · actively exploited (CISA KEV)
7.8CVSS HIGH ● exploited
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2026-06-02. US federal agencies must patch by 2026-06-05.
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)28%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=2051505 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=2051505Patch
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02afPatch
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.htmlAdvisory
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlAdvisory
- https://security.netapp.com/advisory/ntap-20220419-0002/Advisory
- http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.htmlExploit