Main Vulnerability Database Vulnerabilities #VU134474

Type Confusion in Microsoft Windows and Windows Server - CVE-2026-45600

Published: June 12, 2026

Vulnerability identifier: #VU134474

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-45600

CWE-ID: CWE-843

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the target system.

The vulnerability exists due to a type confusion error in Windows Kernel-Mode Driver. A local user can pass specially crafted data to the application, trigger a type confusion error and gain elevated privileges on the system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-45600

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 1607 10.0.14393.9234, 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-2026-45600

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