CVE-2022-0492 (GCVE-0-2022-0492)

Vulnerability from cvelistv5 – Published: 2022-03-03 00:00 – Updated: 2026-06-03 03:55
VLAI CISA KEV
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: kernel 5.17 rc3
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9fa9f8ea-a136-4cb1-abfc-0e9527dd203e

Vulnerability ID: CVE-2022-0492

Status: Confirmed

Status Updated: 2026-06-02 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-02
Asserted: 2026-06-02
Scope
Notes: KEV entry: Linux Kernel Improper Authentication Vulnerability | Affected: Linux / Kernel | Description: Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature. | 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: 2026-06-05 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-287 CWE-862
Feed CISA Known Exploited Vulnerabilities Catalog
Product Kernel
Due Date 2026-06-05
Date Added 2026-06-02
Vendorproject Linux
Vulnerabilityname Linux Kernel Improper Authentication Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-06-02 18:00 UTC | Updated: 2026-06-02 18:00 UTC
Show details on NVD website
To clipboard 

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      "cveMetadata": "{\"cveId\": \"CVE-2022-0492\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-02T19:58:24.068Z\", \"dateReserved\": \"2022-02-04T00:00:00.000Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2022-03-03T00:00:00.000Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.