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ExploitedIn CISA KEVFix available

CVE-2022-0492

Exploitation confirmed. First attested on 2026-06-02 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2022-03-03
  • Fixed in5.16.6 · 5.15.20 · 5.10.97 · 5.4.177 · 4.19.229 · 4.14.266
  • WeaknessCWE-287 · CWE-862

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-03-0319:15CVE publishedNVD
  2. 2026-06-02Added to the CISA KEV catalogCISA KEV
  3. 2026-06-02Listed as exploited by GCVEGCVE
  4. 2026-06-02Exploitation first reportedCISA KEV
  5. 2026-06-0217:48SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-0492?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-0492?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
5.16≥ 5.16, < 5.16.65.16.6
5.x≥ 5.11, < 5.15.205.15.20
5.x≥ 5.5, < 5.10.975.10.97
5.4≥ 4.20, < 5.4.1775.4.177
4.x≥ 4.15, < 4.19.2294.19.229
4.x≥ 4.10, < 4.14.2664.14.266
4.9≥ 2.6.24, < 4.9.3014.9.301
5.17= 5.17no fix published
Canonical ubuntu linux
BranchAffectedFixed in
14.4= 14.04no fix published
16.4= 16.04no fix published
18.4= 18.04no fix published
20.4= 20.04no fix published
22.4= 22.04no fix published
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published
11.0= 11.0no fix published

24 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • kernel
    Affected
    • = kernel 5.17 rc3no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-12-07

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • :linux_kernel:Androidfrom :0 · fixed in :2022-06-05
  • dtb-aarch64openSUSE:Leap 15.3all versions · fixed in 5.3.18-150300.59.54.1and 11 other packages
  • kernelTuxCare:CentOS:8.5all versions · fixed in 4.18.0-348.7.1.el8_5.tuxcare.els8and 21 other packages
  • kernelTuxCare:CentOS:8.4all versions · fixed in 4.18.0-305.25.1.el8_4.tuxcare.els8and 21 other packages
  • kernelTuxCare:CentOS:6all versions · fixed in 2.6.32-754.35.8.el6.tuxcare.els10and 9 other packages
  • kernelRocky Linux:8all versions · fixed in 0:4.18.0-348.20.1.el8_5
  • kernelRed Hat:rhel_eus:8.4::baseosall versions · fixed in 0:4.18.0-305.45.1.el8_4and 32 other packages
  • kernelRed Hat:rhel_eus:8.2::baseosall versions · fixed in 0:4.18.0-193.79.1.el8_2and 32 other packages

229 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-0492 Red Hat Product Security1,372 products fixed

    kernel: cgroups v1 release_agent feature may allow privilege escalation

  • SSA-202008 Siemens ProductCERT11 known affected

    SSA-202008: Multiple Vulnerabilities in Ruggedcom Rox Before V2.17.0

    RUGGEDCOM ROX MX5000 · RUGGEDCOM ROX MX5000RE · RUGGEDCOM ROX RX1400 · +8 more

  • ICSA-22-270-02 CISA4 known affected

    Hitachi Energy APM Edge

    Lumada APM Edge: Version 3.0 · Lumada APM Edge: Version 1.0 · Lumada APM Edge: Version 4.0 · +1 more

  • RHSA-2022:5157 Red Hat Product Security24 products fixed

    Red Hat Security Advisory: kernel security and bug fix update

  • RHSA-2022:4717 Red Hat Product Security106 products fixed

    Red Hat Security Advisory: kernel security update

  • RHSA-2022:4721 Red Hat Product Security40 products fixed

    Red Hat Security Advisory: kpatch-patch security update

19 more advisories

Full record on NVD

Fix

  1. Update Linux linux kernel to 5.16.6 · 5.15.20 · 5.10.97 · 5.4.177 · 4.19.229 · 4.14.266 · 4.9.301
  2. CISA’s 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 2026-06-05
  3. Vendor fix Siemens ProductCERT SSA-202008 · 11 productsUpdate to V2.17.0 or later version
  4. Vendor fix CISA ICSA-22-270-02 · 4 productsWhen applicable, Hitachi Energy recommends users update to Lumada APM Edge v6.3 at the earliest convenience.
  5. Vendor fix Red Hat Product Security RHSA-2022:5157 · 24 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
  6. Vendor fix Red Hat Product Security RHSA-2022:4721 · 40 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  7. Vendor fix Red Hat Product Security RHSA-2022:2211 · 40 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  8. Workaround from the vendor Red Hat Product Security RHSA-2022:5157 · 24 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
8 repositories, unverifiedPaloAltoNetworks/can-ctr-escape-cve-2022-0492SofianeHamlaoui/CVE-2022-0492-Checkerchenaotian/CVE-2022-0492Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2022-0492KianaBin/CVE-2022-0492-Container-Escape
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/local/docker_cgroup_escaperank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2026-06-02
Patch Due Date
2026-06-05
Ransomware Use
Unknown
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.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2022-03-03
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2022-0492?

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.

Is CVE-2022-0492 actively exploited?

Yes. CVE-2022-0492 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-06-05.

What is the CVSS score for CVE-2022-0492?

CVE-2022-0492 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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