CVE-2022-0492
KEVLinux Kernel Improper Authentication Vulnerability
Description
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
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.
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HPublishedMar 3, 2022
Last modifiedJun 17, 2026
Added to KEVJun 2, 2026
Remediation dueJun 5, 2026
References
- packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.htmlThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.htmlExploitVDB Entry
- bugzilla.redhat.com/show_bug.cgi?id=2051505Issue TrackingPatch
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02afPatchVendor Advisory
- lists.debian.org/debian-lts-announce/2022/03/msg00011.htmlMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20220419-0002/Third Party Advisory
- debian.org/security/2022/dsa-5095Third Party Advisory
- debian.org/security/2022/dsa-5096Third Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0492US Government Resource
0 recent articles mention this CVE
70
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 144 days
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 5.5% · top 7% of all CVEs
- Weakness
- CWE-287
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.