CVE-2025-26685 MEDIUM

CVE-2025-26685: Microsoft Defender for Identity Spoofing Vulnerability

Vendor Microsoft
Product Microsoft Defender for Identity
Weakness CWE-287 · Improper authentication
Published May 13, 2025
Last update February 13, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network.

Key dates

02Disclosure timeline

May 13, 2025 CVE published
February 13, 2026 Record updated