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-2020-36558

CVE-2020-36558MEDIUM

n/a n/a — A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fa…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   N   N  U  N  N  H    5.1   .0031   22.3     —

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

TIMELINE
  Jul 21  Reserved by mitre
  Jul 21  Published (CNA: mitre)
  Oct 8   ENRICHED — CVE-2020-36558. Received CVSS 5.1 and CPE data from NVD.
  Oct 8   EXPLOIT PUBLISHED — CVE-2020-36558. Public exploit reference added.

CWE-362, CWE-476 · CNA: mitre · CVSS v3.1 · 2 references · NVD status: Modified

Description

A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
July 21, 2022	Reserved	Reserved by mitre
July 21, 2022	Published	Published (CNA: mitre)
October 8, 2026	ENRICHED	ENRICHED — CVE-2020-36558. Received CVSS 5.1 and CPE data from NVD.
October 8, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2020-36558. Public exploit reference added.

Affected

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

Weaknesses

CWE-362 · CWE-476

References (2)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7 [Patch, Release Notes, Vendor Advisory]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cd1ed50efd88261298577cd92a14f2768eddeeb [Exploit, Mailing List, Patch, Vendor Advisory]

Authoritative record: CVE-2020-36558 at cve.org

Weaknesses: CWE-362 · CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-36558 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.