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8.0 High

CVE-2026-33826 Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent…

Description

Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.

Affected products and versions

Product Affected versions Fixed in
Windows Server 2012 R2 6.3 6.3.9600.0 → < 6.3.9600.23132 6.3.9600.23132
Windows Server 2012 R2 (Server Core installation) 6.3 6.3.9600.0 → < 6.3.9600.23132 6.3.9600.23132
Windows Server 2016 10.0 10.0.14393.0 → < 10.0.14393.9060 10.0.14393.9060
Windows Server 2016 (Server Core installation) 10.0 10.0.14393.0 → < 10.0.14393.9060 10.0.14393.9060
Windows Server 2019 10.0 10.0.17763.0 → < 10.0.17763.8644 10.0.17763.8644
Windows Server 2019 (Server Core installation) 10.0 10.0.17763.0 → < 10.0.17763.8644 10.0.17763.8644
Windows Server 2022 10.0 10.0.20348.0 → < 10.0.20348.5020 10.0.20348.5020
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0 10.0.25398.0 → < 10.0.25398.2274 10.0.25398.2274
Windows Server 2025 10.0 10.0.26100.0 → < 10.0.26100.32690 10.0.26100.32690
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Product Affected versions Fixed in
Windows Server 2025 (Server Core installation) 10.0 10.0.26100.0 → < 10.0.26100.32690 10.0.26100.32690

References

Timeline

  1. Published
  2. Last modified

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