SB2025051398 - Improper Authentication in Microsoft Defender for Identity
Published: May 13, 2025
Security Bulletin ID
SB2025051398
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authentication (CVE-ID: CVE-2025-26685)
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.
Remediation
Install update from vendor's website.