CVE-2026-96222
HIGHCVSS 7.4/10EPSS 0.57%
Last modified
CVE-2026-96222 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
Description
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9612 |
| Microsoft | Windows 10 1809 | < 10.0.17763.9376 |
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9612 |
| Microsoft | Windows Server 2019 | < 10.0.17763.9376 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5761 |
| Microsoft | Windows Server 2025 | < 10.0.26100.33650 |
| Microsoft | .Net | >= 8.0.0, < 8.0.5 |
| Microsoft | Visual Studio 2022 | >= 17.14.0, < 17.14.42 |
| Microsoft | Visual Studio 2026 | >= 18.10.0, < 18.10.4 |
| Microsoft | .Net Framework | 4.8.1 |
| Microsoft | .Net Framework | 4.8 |
| Microsoft | .Net Framework | 4.6.2 |
| Microsoft | .Net Framework | 4.7 |
| Microsoft | .Net Framework | 4.7.1 |
| Microsoft | .Net Framework | 4.7.2 |
| Microsoft | .Net Framework | 3.5 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-96222?
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
How severe is CVE-2026-96222?
CVE-2026-96222 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2026-96222?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-96222?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST