CVE-2026-48566

Windows DWM Core Library Information Disclosure Vulnerability

State: Published
Severity: 5.5 Medium
Published: Jun 9, 2026
Updated: Sep 24, 2026
Reserved: May 21, 2026

Description

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.8457Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.8457Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.2113Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.32860Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.32860Affected

References

Windows DWM Core Library Information Disclosure Vulnerabilityvendor-advisorypatch

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