CVE-2026-96222CWE-295

CVE-2026-96222

High · published October 13, 2026

CVSS v3.1
7.4
EPSS
1%
Percentile
46.4
In the wild
Unconfirmed
What it is

Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00570 · 46.4th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2026-10-13T23:21Z
Affected products (29)
ProductVersionsFixed in
microsoft/windows_10_1607< 10.0.14393.961210.0.14393.9612
microsoft/windows_10_1607< 10.0.14393.961210.0.14393.9612
microsoft/windows_10_1809< 10.0.17763.937610.0.17763.9376
microsoft/windows_10_1809< 10.0.17763.937610.0.17763.9376
microsoft/windows_server_2012all versions—
microsoft/windows_server_2012all versions—
microsoft/windows_server_2016< 10.0.14393.961210.0.14393.9612
microsoft/windows_server_2019< 10.0.17763.937610.0.17763.9376
microsoft/windows_server_2022< 10.0.20348.576110.0.20348.5761
microsoft/windows_server_2025< 10.0.26100.3365010.0.26100.33650
microsoft/.net≥ 8.0.0, < 8.0.58.0.5
microsoft/visual_studio_2022≥ 17.14.0, < 17.14.4217.14.42
microsoft/visual_studio_2026≥ 18.10.0, < 18.10.418.10.4
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
microsoft/.net_frameworkall versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96222 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:35Z
    EPSS moved — → 1%
    epss
  • 13 OCT 19:00Z
    Active Directory Federation Services (AD FS) Spoofing Vulnerability
    cvelistv5
  • 13 OCT 19:00Z
    Active Directory Federation Services (AD FS) Spoofing Vulnerability
    cvelistv5