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CVE-2026-50368

Windows Active Directory Federation Services Denial of Service Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0, 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0, 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0, 4.7.4143.0, 4.8.4803.0, and 7 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Microsoft Microsoft .NET Framework 3.5 AND 4.7.2

    From 4.7.0 · fixed in 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0

  • Microsoft Microsoft .NET Framework 3.5 AND 4.8

    From 4.8.0 · fixed in 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0

  • Microsoft Microsoft .NET Framework 3.5 AND 4.8.1

    From 4.8.1 · fixed in 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0

  • Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2

    From 4.7.0 · fixed in 4.7.4143.0

  • Microsoft Microsoft .NET Framework 4.8

    From 4.8.0 · fixed in 4.8.4803.0

  • Microsoft Microsoft .NET Framework 4.8.1

    From 4.8.0.0 · fixed in 4.8.9340.0

  • Microsoft Windows 10 Version 1607

    From 10.0.14393.0 · fixed in 10.0.14393.9339

  • Microsoft Windows 10 Version 1809

    From 10.0.17763.0 · fixed in 10.0.17763.9020

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.26226

  • Microsoft Windows Server 2012 (Server Core installation)

    From 6.2.9200.0 · fixed in 6.2.9200.26226

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.23291

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    From 6.3.9600.0 · fixed in 6.3.9600.23291

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.9339

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.14393.0 · fixed in 10.0.14393.9339

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.9020

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.17763.0 · fixed in 10.0.17763.9020

  • Microsoft Windows Server 2022

    From 10.0.20348.0 · fixed in 10.0.20348.5386

  • Microsoft Windows Server 2025

    From 10.0.26100.0 · fixed in 10.0.26100.33158

  • Microsoft Windows Server 2025 (Server Core installation)

    From 10.0.26100.0 · fixed in 10.0.26100.33158

References 1

msrc.microsoft.com