Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-3521

CVE-2022-3521LOW

Linux Kernel kcm kcmsock.c kcm_tx_work race condition

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   N  U  N  N  L    2.5   .0024   13.7     —

AFFECTED
  Product  Versions  Fixed
  Kernel   n/a –     —

TIMELINE
  Oct 16  Reserved by VulDB
  Oct 16  Published (CNA: VulDB)
  Oct 14  RESCORED — CVE-2022-3521 (Linux Kernel). CVSS 2.6 → 2.5 (NVD).

CWE-362 · CNA: VulDB · CVSS v3.1 · 5 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 16, 2022	Reserved	Reserved by VulDB
October 16, 2022	Published	Published (CNA: VulDB)
October 14, 2026	RESCORED	RESCORED — CVE-2022-3521 (Linux Kernel). CVSS 2.6 → 2.5 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Kernel	—	n/a	—

Weaknesses

CWE-362

References (5)

https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ec7eede369fe5b0d085ac51fdbb95184f87bfc6c [Mailing List, Patch]
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html [Mailing List, Third Party Advisory]
https://vuldb.com/?id.211018 [Permissions Required, Third Party Advisory]

Authoritative record: CVE-2022-3521 at cve.org

Vendors: linux

Weaknesses: CWE-362

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-3521 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.