CVE-2026-50687

Windows Win32k Elevation of Privilege Vulnerability

State: Published
Severity: 8.8 High
Published: Jul 14, 2026
Updated: Nov 1, 2026
Reserved: Jun 5, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.8875Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.8875Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.2525Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.33158Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.33158Affected

References

Windows Win32k Elevation of Privilege Vulnerabilityvendor-advisorypatch

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