Paper/Archive/CVE-2026-96252

CVE-2026-96252

Microsoft Windows 10 Version 1607 — Active Directory Federation Services (AD FS) Spoofing Vulnerability

CVSS 9.1 (CNA)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 46.6.466 × 209.3 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Improper verification of cryptographic signature in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Affected

ProductAffectedFixed inSource

Windows 10 Version 160710.0.14393.0 – < 10.0.14393.961210.0.14393.9612CNA

Windows 10 Version 180910.0.17763.0 – < 10.0.17763.937610.0.17763.9376CNA

Windows Server 20126.2.9200.0 – < 6.2.9200.264346.2.9200.26434CNA

Windows Server 2012 (Server Core installation)6.2.9200.0 – < 6.2.9200.264346.2.9200.26434CNA

Windows Server 2012 R26.3.9600.0 – < 6.3.9600.234706.3.9600.23470CNA

Windows Server 2012 R2 (Server Core installation)6.3.9600.0 – < 6.3.9600.234706.3.9600.23470CNA

Windows Server 201610.0.14393.0 – < 10.0.14393.961210.0.14393.9612CNA

Windows Server 2016 (Server Core installation)10.0.14393.0 – < 10.0.14393.961210.0.14393.9612CNA

Windows Server 201910.0.17763.0 – < 10.0.17763.937610.0.17763.9376CNA

Windows Server 2019 (Server Core installation)10.0.17763.0 – < 10.0.17763.937610.0.17763.9376CNA

Windows Server 202210.0.20348.0 – < 10.0.20348.576110.0.20348.5761CNA

Windows Server 202510.0.26100.0 – < 10.0.26100.3365010.0.26100.33650CNA

Scores by source

microsoft (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-96252