#VU117023 Input validation error in Windows Server and Windows - CVE-2025-55679
Published: October 14, 2025
Vulnerability identifier: #VU117023
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-55679
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Windows Server
Windows
Windows Server
Windows
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local attacker to gain access to sensitive information on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Windows Kernel. A local attacker can pass specially crafted input to the application and disclose certain memory address within kernel space.
Remediation
Install updates from vendor's website.