Advisoriesby IbisMicrosoftCVE-2026-70005
Microsoft Windows Server: unauthorized attacker could bypass a security feature...
Fix: upgrade to 10.0.17763.9376 or later (3 fixed versions below)
Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to bypass a security feature over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Windows Server 2019 Product | >= 10.0.17763.0, < 10.0.17763.9376 | 10.0.17763.9376 |
| Windows Server 2019 (Server Core installation) Product | >= 10.0.17763.0, < 10.0.17763.9376 | 10.0.17763.9376 |
| Windows Server 2022 Product | >= 10.0.20348.0, < 10.0.20348.5761 | 10.0.20348.5761 |
| Windows Server 2025 Product | >= 10.0.26100.0, < 10.0.26100.33650 | 10.0.26100.33650 |
| Windows Server 2025 (Server Core installation) Product | >= 10.0.26100.0, < 10.0.26100.33650 | 10.0.26100.33650 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-1390