7.4
High
CVE-2026-96222 Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to…
Description
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft .NET Framework 3.5 3.5 | 3.5.0 → latest | No fix stated |
| Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 3.0 | 3.0.0.0 → latest | No fix stated |
| Microsoft .NET Framework 3.5 AND 4.7.2 4.7 | 4.7.0 → latest | No fix stated |
| Microsoft .NET Framework 3.5 AND 4.8 4.8 | 4.8.0 → latest | No fix stated |
| Microsoft .NET Framework 3.5 AND 4.8.1 4.8 | 4.8.1 → latest | No fix stated |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7 | 4.7.0 → < 4.7.4150.0 | 4.7.4150.0 |
| Microsoft .NET Framework 4.8 4.8 | 4.8.0 → < 4.8.4811.0 | 4.8.4811.0 |
| Microsoft .NET Framework 4.8.1 4.8 | 4.8.0.0 → < 4.8.9363.0 | 4.8.9363.0 |
| Microsoft Visual Studio 2022 version 17.14 17.14 | 17.14.0 → < 17.14.42 | 17.14.42 |
Show the 13 other branches Hide the 13 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Visual Studio 2026 version 18.10 18.10 | 18.10.0 → < 18.10.4 | 18.10.4 |
| System.Security.Cryptography.Xml 8.0 | earliest → < 8.0.5 | 8.0.5 |
| Windows 10 Version 1607 10.0 | 10.0.14393.0 → < 10.0.14393.9612 | 10.0.14393.9612 |
| Windows 10 Version 1809 10.0 | 10.0.17763.0 → < 10.0.17763.9376 | 10.0.17763.9376 |
| Windows Server 2012 R2 6.3 | 6.3.9600.0 → < 6.3.9600.23470 | 6.3.9600.23470 |
| Windows Server 2012 R2 (Server Core installation) 6.3 | 6.3.9600.0 → < 6.3.9600.23470 | 6.3.9600.23470 |
| Windows Server 2016 10.0 | 10.0.14393.0 → < 10.0.14393.9612 | 10.0.14393.9612 |
| Windows Server 2016 (Server Core installation) 10.0 | 10.0.14393.0 → < 10.0.14393.9612 | 10.0.14393.9612 |
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.9376 | 10.0.17763.9376 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.9376 | 10.0.17763.9376 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.5761 | 10.0.20348.5761 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.33650 | 10.0.26100.33650 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.33650 | 10.0.26100.33650 |
References
- Active Directory Federation Services (AD FS) Spoofing Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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