Exploit for #VU105518 Input validation error in Windows and Windows Server

Vulnerability identifier: #VU105518

Vulnerability risk: Critical

CVSSv4.0: 7.1 [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: Network

Exploits in database: 2

• November 28, 2025
  • MSC-EvilTwin-Local-Privilege-Escalation (CVE-2025-26633 (CVSS 7.8) – Zero-day MMC .msc EvilTwin LPE actively exploited by Water Gamayun APT. PoC creates local admin via malicious MSC file on unpatched Windows 10/11/Server. Patched March 2025. Authorized t [Github]
• April 11, 2025
  • CVE-2025-26633 [Github]

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft