CVE-2025-21193: Active Directory Federation Server Spoofing Vulnerability
First published: Tue Jan 14 2025(Updated: )
Active Directory Federation Server Spoofing Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server 2016 | <10.0.14393.7699 | |
| Microsoft Windows Server 2019 | <10.0.17763.6775 | |
| Microsoft Windows Server 2022 | <10.0.20348.3091 | |
| Microsoft Windows Server 2022 | <10.0.25398.1369 | |
| Microsoft Windows Server 2025 | <10.0.26100.2894 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21193?
CVE-2025-21193 has been classified as a spoofing vulnerability affecting Active Directory Federation Services.
How do I fix CVE-2025-21193?
To remediate CVE-2025-21193, ensure that you apply the relevant security patches available from Microsoft for your affected Windows Server version.
Which Windows Server versions are affected by CVE-2025-21193?
CVE-2025-21193 affects multiple Windows Server versions including 2016, 2019, 2022, and 2025.
What types of installations are vulnerable to CVE-2025-21193?
Both Server Core and full installations of the affected Windows Server versions are vulnerable to CVE-2025-21193.
Is there a specific patch for CVE-2025-21193?
Yes, Microsoft has released specific patches associated with CVE-2025-21193 that should be applied to affected systems.
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