CVE-2026-70005
Active Directory Federation Services (AD FS) Security Feature Bypass Vulnerability
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to bypass a security feature over a network.
| Vendor | microsoft |
| Product | windows server 2019 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows Server 2019
10.0.17763.0 < 10.0.17763.9376
Microsoft / Windows Server 2019 (Server Core installation)
10.0.17763.0 < 10.0.17763.9376
Microsoft / Windows Server 2022
10.0.20348.0 < 10.0.20348.5761
Microsoft / Windows Server 2025
10.0.26100.0 < 10.0.26100.33650
Microsoft / Windows Server 2025 (Server Core installation)
10.0.26100.0 < 10.0.26100.33650