CVE-2026-108131CWE-290CWE-295

CVE-2026-108131

High · published October 13, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
54.1
In the wild
Unconfirmed
What it is

No cwe for this issue in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00739 · 54.1th percentile
Weaknesses
CWE-290 · Authentication Bypass by Spoofing; CWE-295 · Improper Certificate Validation
Published
2026-10-13T23:18Z
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108131 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 1%
    epss
  • 13 OCT 19:01Z
    Active Directory Federation Services (AD FS) Spoofing Vulnerability
    cvelistv5
  • 13 OCT 19:01Z
    Active Directory Federation Services (AD FS) Spoofing Vulnerability
    cvelistv5