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CVE-2022-0492

7.8
HIGHCVSS v3.1 Base Score
5.24%
LOW RiskEPSS (90th percentile)
KEV

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.

Published: 3/3/2022
Modified: 6/2/2026
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Linux Kernel Improper Authentication Vulnerability

Vendor / Product:

Linux Kernel

Required Action:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Due Date: 6/5/2026(URGENT)
Added to KEV:

6/2/2026

Notes:

This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af ; https://www.kernel.org/ ; https://nvd.nist.gov/vuln/detail/CVE-2022-0492

Vulnerability Summary

CVSS v3 Score

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

5.24%LOW Exploitation Risk
90th percentile

This vulnerability has a 5.24% probability of being exploited in the next 30 days, ranking higher than 90% of all scored CVEs.

CWE Classification

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