Main Vulnerability Database Vulnerabilities #VU134450

Out-of-bounds read in Microsoft Windows and Windows Server - CVE-2026-45604

Published: June 12, 2026

Vulnerability identifier: #VU134450

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-45604

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Managed Installer. A local user can trigger an out-of-bounds read error and read contents of memory on the system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-45604

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 1607 10.0.14393.9234, 11 23H2 10.0.22631.7219, 11 24H2 10.0.26100.8655, 11 25H2 10.0.26200.8655, 11 26H1 10.0.28000.2269
Windows Server - addressed in versions 2004 10.0.19045.7417, 2025 10.0.26100.32995

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45604

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