CVE-2022-0185

CRITICALNVD 8.49.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-08-21), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.4 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 25%CVSS: 8.4Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed: 0

A fix is available — apply it.

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

CVSS v3
8.4
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 PROB
25%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

February 11, 2022

Last Modified

November 6, 2025

Advisory Details (5)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

Will's Root: CVE-2022-0185 - Winning a $31337 Bounty after Pwning Ubuntu and Escaping Google's KCTF Containers

https://www.willsroot.io/2022/01/cve-2022-0185.html
generic

oss-security - Linux kernel: Heap buffer overflow in fs_context.c since version 5.1

https://www.openwall.com/lists/oss-security/2022/01/18/7
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20220225-0003/
generic

GitHub - Crusaders-of-Rust/CVE-2022-0185: CVE-2022-0185 · GitHub

https://github.com/Crusaders-of-Rust/CVE-2022-0185
generic

vfs: fs_context: fix up param length parsing in legacy_parse_param - kernel/git/torvalds/linux.git - Linux kernel source tree

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2

Vendor Advisories for CVE-2022-0185(4)

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

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-virtual-hwe-18.04-edge (5.4.0.96.109~18.04.84) @ bionic2026-07-27ubuntu
ubuntulinux-image-unsigned-5.13.0-1010-intel (5.13.0-1010.10) @ focal2026-07-27ubuntu
ubuntuibm (5.4.0-1009) @ focal2026-07-27ubuntu
redhatredhat-virtualization-host-0:4.4.10-202202081536_8.52022-02-15redhat
redhatkpatch-patch2022-01-24redhat
redhatkernel-rt-0:4.18.0-348.12.2.rt7.143.el8_52022-01-19redhat
redhatkernel-0:4.18.0-305.34.2.el8_42022-01-19redhat
redhatkernel-rt-0:4.18.0-305.34.2.rt7.107.el8_42022-01-19redhat
redhatkernel-0:4.18.0-348.12.2.el8_52022-01-19redhat

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

(7)

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 42× in last 7d / 218× 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 445 total refreshes for this CVE.

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

Publicly available exploits

(6 references)

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

  • GitHub PoCdcheng69/CVE-2022-0185-Case-Study
    First seen Apr 15, 2024
    Open source ↗
  • GitHub PoCfeatherL/CVE-2022-0185-exploit
    First seen Apr 14, 2022

    CVE-2022-0185 exploit

    Open source ↗
  • GitHub PoCveritas501/CVE-2022-0185-PipeVersion
    First seen Apr 5, 2022

    CVE-2022-0185 exploit rewritten with pipe primitive

    Open source ↗
  • GitHub PoCchenaotian/CVE-2022-0185
    First seen Feb 18, 2022

    CVE-2022-0185 POC and Docker and Analysis write up

    Open source ↗
  • GitHub PoCdiscordianfish/cve-2022-0185-crash-poc
    First seen Jan 26, 2022
    Open source ↗
  • GitHub PoCCrusaders-of-Rust/CVE-2022-0185
    First seen Jan 19, 2022

    CVE-2022-0185

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2022-0185?
CVE-2022-0185 is a critical vulnerability published on February 11, 2022. A heap-based buffer overflow flaw was found in the way the legacyparseparam function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAPSYSADMIN…
When was CVE-2022-0185 disclosed?
CVE-2022-0185 was first published in the National Vulnerability Database on February 11, 2022, with the most recent update on November 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-0185 actively exploited?
Yes. CISA added CVE-2022-0185 to the Known Exploited Vulnerabilities catalog on August 21, 2024, affecting Linux Kernel. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-0185?
CVE-2022-0185 has a CVSS v3 base score of 8.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2022-0185?
CVE-2022-0185 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-2022-0185?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-0185, 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-2022-0185

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