CVE-2026-45604

Windows Managed Installer Information Disclosure Vulnerability

State: Published
Severity: 5.5 Medium
Published: Jun 9, 2026
Updated: Sep 24, 2026
Reserved: May 12, 2026

Description

Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information 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 23H2Microsoft	10.0.22631.0 to before 10.0.22631.7219Affected
Windows 11 Version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.7219Affected
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.8655Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.8655Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.2269Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.32995Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.32995Affected

References

Windows Managed Installer Information Disclosure Vulnerabilityvendor-advisorypatch

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