CVE-2022-0492

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-06-02), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 6%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
92.0%
KEV
⚠ Exploited

Published

March 3, 2022

Last Modified

June 3, 2026

Advisory Details (10)

Auto-updated Jun 3, 2026
Patch available. Sources: redhat.
generic

Packet Storm

http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html
generic

Packet Storm

http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20220419-0002/
generic

Packet Storm

http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html
generic Patch Available

[SECURITY] [DSA 5096-1] linux security update

https://www.debian.org/security/2022/dsa-5096
generic

[SECURITY] [DSA 5095-1] linux security update

https://www.debian.org/security/2022/dsa-5095
generic Patch Available

[SECURITY] [DLA 2941-1] linux-4.19 security update

https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
generic Patch Available

[SECURITY] [DLA 2940-1] linux security update

https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
generic

cgroup-v1: Require capabilities to set release_agent - kernel/git/torvalds/linux.git - Linux kernel source tree

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af
redhat Patch Available

2051505 – (CVE-2022-0492) CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation

Affected: Red Hat Enterprise Linux 8

https://bugzilla.redhat.com/show_bug.cgi?id=2051505

Vendor Advisories for CVE-2022-0492(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(23)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-aws-hwe (4.15.0.1124.114) @ xenial2026-07-22ubuntu
ubuntulinux-headers-bluefield (5.4.0.1032.33) @ focal2026-07-22ubuntu
ubuntulinux-image-unsigned-5.13.0-1010-intel (5.13.0-1010.10) @ focal2026-07-22ubuntu
ubuntulinux-oem-5.14-tools-host (5.14.0-1024.26) @ focal2026-07-22ubuntu
ubuntulinux-image-unsigned-5.13.0-37-lowlatency (5.13.0-37.42) @ impish2026-07-22ubuntu
ubuntulinux-headers-azure-fde (5.4.0.1073.76+cvm1.19) @ focal2026-07-22ubuntu
ubuntulinux-image-lowlatency (4.4.0.222.229) @ xenial2026-07-22ubuntu
ubuntulowlatency-4.4 (4.4.0-168) @ xenial2026-07-22ubuntu
redhatkernel-0:3.10.0-693.103.1.el72022-06-22redhat
redhatkernel-0:3.10.0-1062.67.1.el72022-05-24redhat
redhatkpatch-patch2022-05-24redhat
redhatkernel-0:3.10.0-1160.66.1.el72022-05-18redhat
redhatkernel-rt-0:3.10.0-1160.66.1.rt56.1207.el72022-05-18redhat
redhatkernel-0:3.10.0-514.101.1.el72022-05-11redhat
redhatkernel-0:3.10.0-957.94.1.el72022-05-11redhat
redhatkernel-0:4.18.0-305.45.1.el8_42022-04-20redhat
redhatkernel-0:2.6.32-754.47.1.el62022-04-19redhat
redhatkernel-rt-0:4.18.0-305.45.1.rt7.117.el8_42022-04-19redhat
redhatkernel-rt-0:4.18.0-348.20.1.rt7.150.el8_52022-03-10redhat
redhatkernel-0:4.18.0-147.64.1.el8_12022-03-10redhat
redhatkernel-0:4.18.0-348.20.1.el8_52022-03-10redhat
redhatkernel-0:4.18.0-193.79.1.el8_22022-03-10redhat
redhatkernel-rt-0:4.18.0-193.79.1.rt13.129.el8_22022-03-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 55× in last 7d / 248× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 458 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-24 14:15 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:06 UTCEG score recompute
  5. 2026-07-22 22:11 UTCEG score recompute
  6. 2026-07-22 22:11 UTCVendor advisory
  7. 2026-07-22 19:40 UTCCISA KEV update
  8. 2026-07-22 18:28 UTCVendor advisory
  9. 2026-07-22 14:46 UTCEG score recompute
  10. 2026-07-22 14:46 UTCVendor advisory
  11. 2026-07-22 14:06 UTCEPSS rescore
  12. 2026-07-22 11:03 UTCVendor advisory
  13. 2026-07-22 07:20 UTCVendor advisory
  14. 2026-07-22 03:37 UTCVendor advisory
  15. 2026-07-21 23:53 UTCVendor advisory
  16. 2026-07-21 18:01 UTCEG score recompute
  17. 2026-07-21 18:01 UTCVendor advisory
  18. 2026-07-21 15:22 UTCEPSS rescore
  19. 2026-07-21 15:22 UTCEPSS rescore
  20. 2026-07-21 14:37 UTCCISA KEV update
  21. 2026-07-21 14:18 UTCVendor advisory
  22. 2026-07-21 10:36 UTCVendor advisory
  23. 2026-07-21 06:52 UTCVendor advisory
  24. 2026-07-21 03:11 UTCVendor advisory
  25. 2026-07-20 23:29 UTCVendor advisory
Show 75 more
  1. 2026-07-20 19:47 UTCEG score recompute
  2. 2026-07-20 19:47 UTCVendor advisory
  3. 2026-07-20 17:05 UTCEPSS rescore
  4. 2026-07-20 16:05 UTCVendor advisory
  5. 2026-07-20 12:22 UTCVendor advisory
  6. 2026-07-20 08:39 UTCVendor advisory
  7. 2026-07-20 04:58 UTCVendor advisory
  8. 2026-07-20 01:15 UTCVendor advisory
  9. 2026-07-19 21:33 UTCVendor advisory
  10. 2026-07-19 17:51 UTCEG score recompute
  11. 2026-07-19 17:51 UTCVendor advisory
  12. 2026-07-19 14:29 UTCEPSS rescore
  13. 2026-07-19 14:09 UTCVendor advisory
  14. 2026-07-19 10:28 UTCVendor advisory
  15. 2026-07-19 06:46 UTCVendor advisory
  16. 2026-07-19 03:04 UTCEG score recompute
  17. 2026-07-19 03:04 UTCVendor advisory
  18. 2026-07-19 02:27 UTCEPSS rescore
  19. 2026-07-19 02:27 UTCEPSS rescore
  20. 2026-07-18 23:22 UTCVendor advisory
  21. 2026-07-18 19:39 UTCVendor advisory
  22. 2026-07-18 15:57 UTCVendor advisory
  23. 2026-07-18 12:15 UTCEG score recompute
  24. 2026-07-18 12:15 UTCVendor advisory
  25. 2026-07-18 10:02 UTCEPSS rescore
  26. 2026-07-18 08:33 UTCVendor advisory
  27. 2026-07-18 04:51 UTCVendor advisory
  28. 2026-07-18 01:07 UTCVendor advisory
  29. 2026-07-17 21:25 UTCVendor advisory
  30. 2026-07-17 17:43 UTCVendor advisory
  31. 2026-07-17 14:00 UTCVendor advisory
  32. 2026-07-17 10:18 UTCEG score recompute
  33. 2026-07-17 10:18 UTCVendor advisory
  34. 2026-07-17 06:36 UTCVendor advisory
  35. 2026-07-17 02:54 UTCVendor advisory
  36. 2026-07-16 23:12 UTCVendor advisory
  37. 2026-07-16 19:30 UTCVendor advisory
  38. 2026-07-16 17:04 UTCCISA KEV update
  39. 2026-07-16 17:00 UTCEPSS rescore
  40. 2026-07-16 17:00 UTCEPSS rescore
  41. 2026-07-16 15:48 UTCVendor advisory
  42. 2026-07-16 12:05 UTCVendor advisory
  43. 2026-07-16 08:22 UTCVendor advisory
  44. 2026-07-16 04:41 UTCVendor advisory
  45. 2026-07-16 00:59 UTCVendor advisory
  46. 2026-07-15 21:17 UTCVendor advisory
  47. 2026-07-15 17:35 UTCVendor advisory
  48. 2026-07-15 16:55 UTCEPSS rescore
  49. 2026-07-15 16:49 UTCCISA KEV update
  50. 2026-07-15 15:04 UTCCISA KEV update
  51. 2026-07-15 13:53 UTCVendor advisory
  52. 2026-07-15 10:11 UTCVendor advisory
  53. 2026-07-15 06:28 UTCVendor advisory
  54. 2026-07-15 02:46 UTCVendor advisory
  55. 2026-07-15 01:58 UTCEPSS rescore
  56. 2026-07-15 01:58 UTCEPSS rescore
  57. 2026-07-14 23:04 UTCVendor advisory
  58. 2026-07-14 19:22 UTCVendor advisory
  59. 2026-07-14 18:05 UTCCISA KEV update
  60. 2026-07-14 15:38 UTCVendor advisory
  61. 2026-07-14 11:56 UTCVendor advisory
  62. 2026-07-14 08:15 UTCVendor advisory
  63. 2026-07-14 04:32 UTCVendor advisory
  64. 2026-07-14 00:50 UTCVendor advisory
  65. 2026-07-13 22:27 UTCEPSS rescore
  66. 2026-07-13 21:08 UTCVendor advisory
  67. 2026-07-13 17:26 UTCVendor advisory
  68. 2026-07-13 17:07 UTCCISA KEV update
  69. 2026-07-13 13:44 UTCVendor advisory
  70. 2026-07-13 10:02 UTCVendor advisory
  71. 2026-07-13 06:13 UTCVendor advisory
  72. 2026-07-13 06:11 UTCEPSS rescore
  73. 2026-07-13 06:11 UTCEPSS rescore
  74. 2026-07-13 02:31 UTCVendor advisory
  75. 2026-07-12 22:48 UTCVendor advisory

Publicly available exploits

(7 references)

Working exploit code is in the public domain (1 Metasploit module) (6 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCT1erno/CVE-2022-0492-Docker-Breakout-Checker-and-PoC
    First seen Feb 18, 2023

    Docker Breakout Checker and PoC via CAP_SYS_ADMIN and via user namespaces (CVE-2022-0492)

    Open source ↗
  • GitHub PoCKianaBin/CVE-2022-0492-Container-Escape
    First seen Aug 27, 2022

    CVE-2022-0492-Container-Escape

    Open source ↗
  • GitHub PoCyoeelingBin/CVE-2022-0492-Container-Escape
    First seen Aug 27, 2022

    CVE-2022-0492-Container-Escape

    Open source ↗
  • GitHub PoCchenaotian/CVE-2022-0492
    First seen Mar 11, 2022

    CVE-2022-0492 EXP and Analysis write up

    Open source ↗
  • GitHub PoCSofianeHamlaoui/CVE-2022-0492-Checker
    First seen Mar 6, 2022

    A script to check if a container environment is vulnerable to container escapes via CVE-2022-0492

    Open source ↗
  • GitHub PoCPaloAltoNetworks/can-ctr-escape-cve-2022-0492
    First seen Feb 28, 2022

    Test whether a container environment is vulnerable to container escapes via CVE-2022-0492

    Open source ↗
  • Metasploitexploit/linux/local/docker_cgroup_escape✓ verified
    First seen Feb 4, 2022

    Docker cgroups Container Escape

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2022-0492?
CVE-2022-0492 is a high vulnerability published on March 3, 2022. A vulnerability was found in the Linux kernel’s cgroupreleaseagentwrite in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 releaseagent feature to escalate privileges and bypass the namespace isolation unexpectedly.
When was CVE-2022-0492 disclosed?
CVE-2022-0492 was first published in the National Vulnerability Database on March 3, 2022, with the most recent update on June 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-0492 actively exploited?
Yes. CISA added CVE-2022-0492 to the Known Exploited Vulnerabilities catalog on June 2, 2026, affecting Linux Kernel. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-0492?
CVE-2022-0492 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2022-0492?
CVE-2022-0492 affects Linux Kernel. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-0492?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-0492, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-0492

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