CVE-2026-96222
Active Directory Federation Services (AD FS) Spoofing Vulnerability
HIGH 7.4
At a glance
- Source
- NVD
- EPSS
- EPSS 0.59 % · percentile 48 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Weaknesses (CWE)
- CWE-295 — Improper Certificate Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · secure@microsoft.com (Secondary) |
Advisories
- GHSA-vrv5-2jg9-4mmr — Microsoft Security Advisory CVE-2026-96222 - .NET Spoofing Vulnerability
European references
- ENISA EUVD · EUVD-2026-99750
- GCVE · GCVE-0-2026-96222
CERT-FR advisories
- CERTFR-2026-AVI-1316 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1314 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1313 — Multiples vulnérabilités dans Microsoft .Net · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*< 10.0.14393.9612cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*< 10.0.14393.9612cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*< 10.0.17763.9376cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*< 10.0.17763.9376cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:x64:*< 10.0.14393.9612cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:x64:*< 10.0.17763.9376cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:*< 10.0.20348.5761cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*< 10.0.26100.33650cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.0.5cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:-:*:*≥ 17.14.0 < 17.14.42cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:-:*:*≥ 18.10.0 < 18.10.4cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
Affected products
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |