Reference page — cumulative record through Monday, October 5, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-50413

CVE-2026-50413HIGH

Microsoft Windows 11 Version 24H2 — Windows Runtime Elevation of Privilege Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0033   24.3     —

AFFECTED
  Product                                         Versions        Fixed
  Windows 11 Version 24H2                         10.0.26100.0 –  —
  Windows 11 Version 25H2                         10.0.26200.0 –  —
  Windows 11 version 26H1                         10.0.28000.0 –  —
  Windows Server 2025                             10.0.26100.0 –  —
  Windows Server 2025 (Server Core installation)  10.0.26100.0 –  —

TIMELINE
  Jun 4   Reserved by microsoft
  Jul 14  Published (CNA: microsoft)
  Jul 22  RESCORED — CVE-2026-50413 (Microsoft Windows 11 Version 24H2). CVSS 8.8 → 7.8 (NVD).

CWE-416 · CNA: microsoft · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 4, 2026	Reserved	Reserved by microsoft
July 14, 2026	Published	Published (CNA: microsoft)
July 22, 2026	RESCORED	RESCORED — CVE-2026-50413 (Microsoft Windows 11 Version 24H2). CVSS 8.8 → 7.8 (NVD).

Affected

Affected products and packages — 5 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Windows 11 Version 24H2	—	10.0.26100.0	—
Microsoft	Windows 11 Version 25H2	—	10.0.26200.0	—
Microsoft	Windows 11 version 26H1	—	10.0.28000.0	—
Microsoft	Windows Server 2025	—	10.0.26100.0	—
Microsoft	Windows Server 2025 (Server Core installation)	—	10.0.26100.0	—

Weaknesses

CWE-416

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50413 [vendor-advisory, patch]

Authoritative record: CVE-2026-50413 at cve.org

Vendors: microsoft

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-50413 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 5, 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.