CVE-2022-3521

LOWNVD 2.62.6—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 2.6 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 88% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
2.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 2.6Exploit: NoneExposed: 0

A fix is available — apply it.

A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function kcm_tx_work of the file net/kcm/kcmsock.c of the component kcm. The manipulation leads to race condition. It is recommended to apply a patch to fix this issue. VDB-211018 is the identifier assigned to this vulnerability.

CVSS v3
2.6
EG Score
2.6(medium)
EG Risk
12(Track)
EG Risk 12/100SSVC: Track

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
Severity26% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
12.3%
KEV
Not listed

Published

October 16, 2022

Last Modified

November 21, 2024

References (8)

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-virtual-hwe-16.04 (4.15.0.206.191) @ xenial2026-05-25ubuntu
ubuntulinux-image-5.19.0-1018-lowlatency (5.19.0-1018.19) @ kinetic2026-05-25ubuntu
ubuntulinux-image-virtual-hwe-18.04-edge (5.4.0.144.142) @ focal2026-05-25ubuntu
ubuntulinux-buildinfo-5.15.0-67-generic-lpae (5.15.0-67.74) @ jammy2026-05-25ubuntu
ubuntulinux-oracle-tools-4.15.0-1115 (4.15.0-1115.126~16.04.1) @ xenial2026-05-25ubuntu
ubuntulinux-buildinfo-4.15.0-1115-oracle (4.15.0-1115.126) @ bionic2026-05-25ubuntu
ubuntulinux-image-azure-lts-18.04 (4.15.0.1162.130) @ bionic2026-05-25ubuntu
ubuntulinux-image-unsigned-5.15.0-1016-gkeop (5.15.0-1016.21) @ jammy2026-05-25ubuntu
ubuntulinux-image-5.15.0-1025-raspi (5.15.0-1025.27) @ jammy2026-05-25ubuntu
ubuntulinux-image-gcp-edge (5.4.0.1101.77) @ bionic2026-05-25ubuntu
ubuntulinux-tools-raspi-hwe-18.04-edge (5.4.0.1081.78) @ bionic2026-05-25ubuntu
ubuntulinux-cloud-tools-5.15.0-1026-intel-iotg (5.15.0-1026.31) @ jammy2026-05-25ubuntu
ubuntulinux-tools-snapdragon (4.15.0.1146.145) @ bionic2026-05-25ubuntu
ubuntulinux-modules-extra-5.4.0-1045-ibm (5.4.0-1045.50) @ focal2026-05-25ubuntu
ubuntulinux-modules-extra-5.19.0-1014-raspi (5.19.0-1014.21) @ kinetic2026-05-25ubuntu
ubuntulinux-image-azure (4.15.0.1162.128) @ trusty2026-05-25ubuntu
ubuntulinux-image-raspi2-hwe-18.04 (5.4.0.1081.111) @ focal2026-05-25ubuntu
ubuntulinux-image-5.19.0-1019-kvm (5.19.0-1019.20) @ kinetic2026-05-25ubuntu
ubuntulinux-image-5.15.0-1029-kvm (5.15.0-1029.34) @ jammy2026-05-25ubuntu
ubuntulinux-headers-azure-edge (4.15.0.1162.146) @ xenial2026-05-25ubuntu
ubuntulinux-headers-bluefield (5.4.0.1059.54) @ focal2026-05-25ubuntu
ubuntulinux-headers-gcp (4.15.0.1146.136) @ xenial2026-05-25ubuntu

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(1)

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

All Vendor Advisories

(23)

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 13× in last 7d / 48× 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 110 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:12 UTCEG score recompute
  3. 2026-07-22 22:59 UTCEG score recompute▲ 0.10
  4. 2026-07-22 14:06 UTCEPSS rescore
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  12. 2026-07-18 10:03 UTCEPSS rescore
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  14. 2026-07-16 17:49 UTCOSV refresh
  15. 2026-07-16 17:00 UTCEPSS rescore
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  24. 2026-07-11 08:25 UTCEPSS rescore
  25. 2026-07-09 19:08 UTCEPSS rescore
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  1. 2026-07-08 15:12 UTCEPSS rescore
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  5. 2026-07-06 02:21 UTCEPSS rescore
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  10. 2026-07-01 15:04 UTCEPSS rescore
  11. 2026-06-30 23:20 UTCEPSS rescore
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  13. 2026-06-29 14:04 UTCEPSS rescore
  14. 2026-06-28 16:02 UTCOSV refresh
  15. 2026-06-28 14:06 UTCEPSS rescore
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  22. 2026-06-24 14:03 UTCEPSS rescore
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  27. 2026-06-22 14:24 UTCEPSS rescore
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  40. 2026-06-14 23:15 UTCEPSS rescore
  41. 2026-06-13 22:58 UTCEPSS rescore
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  44. 2026-06-11 13:58 UTCEPSS rescore
  45. 2026-06-11 13:58 UTCEPSS rescore
  46. 2026-06-11 06:09 UTCOSV refresh
  47. 2026-06-10 22:17 UTCEPSS rescore
  48. 2026-06-10 13:20 UTCEPSS rescore
  49. 2026-06-08 14:15 UTCEPSS rescore
  50. 2026-06-08 14:15 UTCEPSS rescore
  51. 2026-06-07 15:23 UTCEPSS rescore
  52. 2026-06-07 15:23 UTCEPSS rescore
  53. 2026-06-06 13:46 UTCEPSS rescore
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  66. 2026-05-31 22:29 UTCEPSS rescore
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  73. 2026-05-28 13:43 UTCEPSS rescore
  74. 2026-05-28 13:43 UTCEPSS rescore
  75. 2026-05-27 13:39 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-3521?
CVE-2022-3521 is a low vulnerability published on October 16, 2022. A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function kcmtxwork of the file net/kcm/kcmsock.c of the component kcm. The manipulation leads to race condition. It is recommended to apply a patch to fix this issue. VDB-211018 is the…
When was CVE-2022-3521 disclosed?
CVE-2022-3521 was first published in the National Vulnerability Database on October 16, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-3521 actively exploited?
CVE-2022-3521 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-3521?
CVE-2022-3521 has a CVSS v3 base score of 2.6 (NVD).
How do I remediate CVE-2022-3521?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-3521, 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

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