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-2022-40307

CVE-2022-40307MEDIUM

n/a n/a — An issue was discovered in the Linux kernel through 5.19.8.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   N  U  N  N  H    4.7   .0021   10.6     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Sep 9   Reserved by mitre
  Sep 9   Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2022-40307. Received CVSS 4.7 and CPE data from NVD.

CWE-362 · CNA: mitre · CVSS v3.1 · 6 references · NVD status: Modified

Description

An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 9, 2022	Reserved	Reserved by mitre
September 9, 2022	Published	Published (CNA: mitre)
October 14, 2026	ENRICHED	ENRICHED — CVE-2022-40307. Received CVSS 4.7 and CPE data from NVD.

Affected

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

Weaknesses

CWE-362

References (6)

https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://cert-portal.siemens.com/productcert/html/ssa-831302.html
https://github.com/torvalds/linux/commit/9cb636b5f6a8cc6d1b50809ec8f8d33ae0c84c95 [Patch, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html [Mailing List, Third Party Advisory]
https://www.debian.org/security/2022/dsa-5257 [Third Party Advisory]

Authoritative record: CVE-2022-40307 at cve.org

Weaknesses: CWE-362

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-40307 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.