CVE-2025-26685

Name: CVE-2025-26685
Creator: NVD / NIST
Published: 2025-05-13T17:15:52.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2025-26685 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Improper authentication in Microsoft Defender for Identity allows an unauthorized attacker to perform spoofing over an adjacent network.. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.63%

45.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Microsoft	Defender For Identity	All versions

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26685Vendor Advisory

Timeline

Published: May 13, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-26685?

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

How severe is CVE-2025-26685?

CVE-2025-26685 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2025-26685?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-26685?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST