CVE-2022-0492
KEVHIGH 7.8EPSS 5.5%
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
- kernel
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C - EPSS
- 5.53% chance of exploitation in the next 30 days, 93rd percentile
- CISA KEV
- added 2026-06-02
- Published
- 2022-03-03
- Updated
- 2026-06-03
Proof-of-concept exploits (9)
- PaloAltoNetworks/can-ctr-escape-cve-2022-049247★ · 2022-03-09
- Perimora/cve_2022_04920★ · 2025-07-20
- SgtMate/container_escape_showcase1★ · 2024-05-03
- T1erno/CVE-2022-0492-Docker-Breakout-Checker-and-PoC8★ · 2023-02-18
- Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2022-04920★ · 2022-05-09
- chenaotian/CVE-2022-049235★ · 2022-03-11
- yoeelingBin/CVE-2022-0492-Container-Escape2★ · 2022-08-28
- bytemomo/container_escape_iso1★ · 2023-05-16
- h4ckm310n/Container-Vulnerability-Exploit159★ · 2024-03-26
Metasploit modules (1)
Security advisories
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f60085641…
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1…
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1…
- https://bugzilla.redhat.com/show_bug.cgi?id=2051505
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://security.netapp.com/advisory/ntap-20220419-0002
- https://www.debian.org/security/2022/dsa-5095
- https://www.debian.org/security/2022/dsa-5096