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Threats / Linux / CVE-2022-0492
CVE-2022-0492 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-06

Linux Kernel vulnerability

Linux Kernel cgroups v1 release_agent feature contains an improper authentication vulnerability enabling privilege escalation.

Verdict

Today item — known-exploited.

An unauthenticated local attacker can exploit cgroups v1 release_agent functionality to escalate privileges on affected Linux systems. The vulnerability has been observed in active exploitation.

CISA KEV Yes · 2026-06-023EPSS 0.28124 (verify live)4
01

Is it exploitable?

— the evidence, ranked above the score
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-06-02).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.28124 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
FIRST EPSS ↗High
Severity / affected
Affected: Linux, Kernel. Confirm exact fixed builds in the vendor advisory.
NVD ↗Reported
Weakness (CWE)
Mapped to CWE-287 Improper Authentication, CWE-862 Missing Authorization — weakness family: Authentication, Authorization / access control.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
NVD ↗Reported
WeaknessCWE-287 · Improper AuthenticationCWE-862 · Missing AuthorizationAuthentication, Authorization / access control
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution not established

No threat-actor attribution is established from the public feed for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.

03

Why it matters

— the attack path, told twice: adversary, then board
1

Front door — unauthenticated access narrative 1

Attacker
Gain local system access to a Linux host running vulnerable kernel.
Business
Attacker establishes initial foothold on infrastructure.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
Manipulate cgroups v1 release_agent configuration to execute arbitrary code with elevated privileges.
Business
Attacker bypasses access controls and authentication mechanisms.
3

Lateral reach — past segmentation narrative 3

Attacker
Achieve root or administrative privilege level on the compromised system.
Business
Attacker gains complete control over affected host and can access sensitive data or pivot to other systems.
04

What to do

— defensible action
  • Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • CWE weakness mapping (NVD)
  • Catalogued by redhat (CNA)

    • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
    • Disclosure & credit2
    Catalogued by redhatCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.