CVE-2022-0995

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-08-26), 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, ghsa, nvd
Trending — 5 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: 9%CVSS: 7.8Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · public exploitExposed: 0

A fix is available — apply it.

An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem. This flaw can overwrite parts of the kernel state, potentially allowing a local user to gain privileged access or cause a denial of service on the system.

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 PROB
9%
EPSS %ILE
95%
KEV
⚠ Exploited

Published

March 25, 2022

Last Modified

August 27, 2026

Advisory Details (5)

Auto-updated Aug 26, 2026
Patch available. Sources: redhat.
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20220429-0001/
generic

Merge branch 'davidh' (fixes from David Howells) - kernel/git/torvalds/linux.git - Linux kernel source tree

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93ce93587d36493f2f86921fa79921b3cba63fbb
redhat Patch Available

2063786 – (CVE-2022-0995) CVE-2022-0995 kernel: kernel bug in the watch_queue subsystem

https://bugzilla.redhat.com/show_bug.cgi?id=2063786
generic

Packet Storm Security

http://packetstormsecurity.com/files/166815/Watch-Queue-Out-Of-Bounds-Write.html
generic

Packet Storm Security

http://packetstormsecurity.com/files/166770/Linux-watch_queue-Filter-Out-Of-Bounds-Write.html

Vendor Advisories for CVE-2022-0995(1)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gcp-fips (5.15.0.1081.71) @ jammy2026-09-20ubuntu
ubuntulinux-tools-realtime (5.15.0.1082.86) @ jammy2026-09-20ubuntu
ubuntuoracle (5.4.0-1121) @ focal2026-09-20ubuntu
ubuntulinux-tools-azure-fips (5.15.0.1087.72) @ jammy2026-09-20ubuntu
ubuntuoracle (5.15.0-1055) @ jammy2026-09-20ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.138.134) @ jammy2026-09-20ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1077.83~20.04.1) @ focal2026-09-20ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1082.89~20.04.1) @ focal2026-09-20ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1079.85~20.04.1) @ focal2026-09-20ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1081.90~20.04.1) @ focal2026-09-20ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1046.50) @ jammy2026-09-20ubuntu

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (10 versions)5.10.106-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—5.16.18-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—5.16.18-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—5.16.18-1—

Weakness Classification(1)

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

All Vendor Advisories

(12)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 104× in last 7d / 384× 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 509 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

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

  • GitHub PoCBonfee/CVE-2022-0995
    First seen Mar 26, 2022

    CVE-2022-0995 exploit

    Open source ↗
  • Metasploitexploit/linux/local/cve_2022_0995_watch_queue✓ verified
    First seen Mar 14, 2022

    Watch Queue Out of Bounds Write

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2022-0995?
CVE-2022-0995 is a critical vulnerability published on March 25, 2022. An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s watch_queue event notification subsystem. This flaw can overwrite parts of the kernel state, potentially allowing a local user to gain privileged access or cause a denial of service on the system.
When was CVE-2022-0995 disclosed?
CVE-2022-0995 was first published in the National Vulnerability Database on March 25, 2022, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-0995 actively exploited?
Yes. CISA added CVE-2022-0995 to the Known Exploited Vulnerabilities catalog on August 26, 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-2022-0995?
CVE-2022-0995 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-2022-0995?
CVE-2022-0995 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-2022-0995?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-0995, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-0995

Explore →

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