Improper Authentication in Windows and Windows Server - CVE-2025-59280
Published: October 15, 2025
Vulnerability identifier: #VU117199
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-59280
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests in Windows SMB Clien. A remote attacker can bypass authentication process and perform tampering on the system.
How to mitigate CVE-2025-59280
Install updates from vendor's website.