CVE-2022-0492KEV · OVERDUECWE-287

Linux Kernel Improper Authentication Vulnerability

High · published March 3, 2022

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 92.8th percentile for exploit probability.

141
days past CISA
deadline
CVSS v3.1
7.8
EPSS
6%
Percentile
92.8
In the wild
Confirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.05528 · 92.8th percentile
Weakness
CWE-287 · Improper Authentication
Published
2022-03-03T00:00Z
KEV added
2026-06-02 · due 2026-06-05
EPSS history
Timeline
  • 02 JUN 00:00Z
    Added to CISA KEV — remediate by Jun 5
    kev
  • 03 MAR 00:00Z
    A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function
    cvelistv5