Improper Authentication in Microsoft Defender for Identity - CVE-2025-26685
Published: May 13, 2025
Vulnerability identifier: #VU109096
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-26685
CWE-ID: CWE-287
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Defender for Identity
Microsoft Defender for Identity
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests in Microsoft Defender for Identity. A remote attacker on the local network can bypass authentication process and perform spoofing attack.
How to mitigate CVE-2025-26685
Install updates from vendor's website.