CVE-2025-59255

Windows DWM Core Library Elevation of Privilege Vulnerability

State: Published
Severity: 7.8 High
Published: Oct 14, 2025
Updated: Feb 26, 2026
Reserved: Sep 11, 2025

Description

Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.7919Affected
Windows 10 Version 21H2Microsoft	10.0.19044.0 to before 10.0.19044.6456Affected
Windows 10 Version 22H2Microsoft	10.0.19045.0 to before 10.0.19045.6456Affected
Windows 11 version 22H2Microsoft	10.0.22621.0 to before 10.0.22621.6060Affected
Windows 11 version 22H3Microsoft	10.0.22631.0 to before 10.0.22631.6060Affected
Windows 11 Version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.6060Affected
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.6899Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.6899Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.7919Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.7919Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.4294Affected
Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft	10.0.25398.0 to before 10.0.25398.1913Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.6899Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.6899Affected

References

Windows DWM Core Library Elevation of Privilege Vulnerabilityvendor-advisorypatch

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