#VU105518 Input validation error in Windows and Windows Server - CVE-2025-26633
Published: March 11, 2025 / Updated: November 28, 2025
Vulnerability identifier: #VU105518
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2025-26633
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in Microsoft Management Console. A remote attacker can trick the victim into opening a specially crafted file and execute arbitrary code on the target system.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.