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CVE-2026-56155 is a high severity vulnerability with a CVSS score of 7.8. Exploits are available; patches have been released and should be applied urgently. This is classified as a zero-day vulnerability.
Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally.
| Vendor | Product |
|---|---|
| Microsoft | Windows Server 2025 |
| Microsoft | Windows Server 2012 |
| Microsoft | Windows 10 1607 |
| Microsoft | Windows Server 2016 |
| Microsoft | Windows Server 2022 |
| Microsoft | Windows 10 1809 |
| Microsoft | Windows Server 2019 |
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