Main Vulnerability Database Vulnerabilities #VU117025

Use-after-free in Microsoft Windows and Windows Server - CVE-2025-55693

Published: October 14, 2025

Vulnerability identifier: #VU117025

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-2025-55693

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Windows Kernel. A local user can win a race condition and gain elevated privileges on the system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2025-55693

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 1607 10.0.14393.8519, 11 24H2 10.0.26100.6899
Windows Server - addressed in versions 2012 R2 6.3.9600.22824, 2025 10.0.26100.6899

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-55693

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