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MEDIUM · 6.5

CVE-2025-21193

Active Directory Federation Server Spoofing Vulnerability

Vulnerability Description

Active Directory Federation Server Spoofing Vulnerability

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftWindows Server 2016< 10.0.14393.7699
MicrosoftWindows Server 2019< 10.0.17763.6775
MicrosoftWindows Server 2022< 10.0.20348.3091
MicrosoftWindows Server 2022 23H2< 10.0.25398.1369
MicrosoftWindows Server 2025< 10.0.26100.2894

Related Weaknesses (CWE)

CWE-352

References

FAQ

What is CVE-2025-21193?

CVE-2025-21193 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Active Directory Federation Server Spoofing Vulnerability

How severe is CVE-2025-21193?

CVE-2025-21193 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-21193?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23H2, Microsoft Windows Server 2025.