CVE-2026-50684HighCVSS 4.8

Active Directory Federation Server Spoofing Vulnerability

Published
July 17, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-50684 →

📋 Description

Improper neutralization of input during web page generation ('cross-site scripting') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.

🎯 Affected products15

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Remediation

KB5099538 (Security Update) — fixed build 10.0.17763.9020 KB5099540 (Security Update) — fixed build 10.0.20348.5386 KB5099536 (Security Update) — fixed build 10.0.26100.33158 KB5099535 (Security Update) — fixed build 10.0.14393.9339 KB5099445 (Monthly Rollup) — fixed build 6.2.9200.26226 KB5099444 (Monthly Rollup) — fixed build 6.3.9600.23291

🔗 References (13)