CVE-2026-83674: Active Directory Federation Services (AD FS) Spoofing Vulnerability
Microsoft · Windows 10 Version 1607
Vendor fix available · Affected: Microsoft Windows 10 Version 1607 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 54% of scored CVEs
DescriptionCVE.org
Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Affected products9
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · Windows 10 Version 1607from 10.0.14393.0 before 10.0.14393.9612
- Microsoft · Windows 10 Version 1809from 10.0.17763.0 before 10.0.17763.9376
- Microsoft · Windows Server 2016from 10.0.14393.0 before 10.0.14393.9612
- Microsoft · Windows Server 2016 (Server Core installation)from 10.0.14393.0 before 10.0.14393.9612
- Microsoft · Windows Server 2019from 10.0.17763.0 before 10.0.17763.9376
- Microsoft · Windows Server 2019 (Server Core installation)from 10.0.17763.0 before 10.0.17763.9376
- Microsoft · Windows Server 2022from 10.0.20348.0 before 10.0.20348.5761
- Microsoft · Windows Server 2025from 10.0.26100.0 before 10.0.26100.33650
- Microsoft · Windows Server 2025 (Server Core installation)from 10.0.26100.0 before 10.0.26100.33650
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Microsoft
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-83674 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.