Input validation error in Windows Server - CVE-2025-26647
Published: April 8, 2025
Vulnerability identifier: #VU107224
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-26647
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows Server
Windows Server
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in Windows Kerberos. A remote attacker can perform a man-in-the-middle (MitM) attack and gain elevated privileges on the system.
How to mitigate CVE-2025-26647
Install update from vendor's website.