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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-20812

LDAP Tampering Vulnerability

Description

Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to perform tampering over a network.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Windows 10 Version 1607

  • 10.0.14393.0 to < 10.0.14393.8783affected

Microsoft Windows 10 Version 1809

  • 10.0.17763.0 to < 10.0.17763.8276affected

Microsoft Windows 10 Version 21H2

  • 10.0.19044.0 to < 10.0.19044.6809affected

Microsoft Windows 10 Version 22H2

  • 10.0.19045.0 to < 10.0.19045.6809affected

Microsoft Windows 11 version 23H2

  • 10.0.22631.0 to < 10.0.22631.6491affected

Microsoft Windows 11 Version 23H2

  • 10.0.22631.0 to < 10.0.22631.6491affected

Microsoft Windows 11 Version 24H2

  • 10.0.26100.0 to < 10.0.26100.7623affected

Microsoft Windows 11 Version 25H2

  • 10.0.26200.0 to < 10.0.26200.7623affected

Microsoft Windows Server 2016

  • 10.0.14393.0 to < 10.0.14393.8783affected

Microsoft Windows Server 2016 (Server Core installation)

  • 10.0.14393.0 to < 10.0.14393.8783affected

Microsoft Windows Server 2019

  • 10.0.17763.0 to < 10.0.17763.8276affected

Microsoft Windows Server 2019 (Server Core installation)

  • 10.0.17763.0 to < 10.0.17763.8276affected

Microsoft Windows Server 2022

  • 10.0.20348.0 to < 10.0.20348.4648affected

Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

  • 10.0.25398.0 to < 10.0.25398.2092affected

Microsoft Windows Server 2025

  • 10.0.26100.0 to < 10.0.26100.32230affected

Microsoft Windows Server 2025 (Server Core installation)

  • 10.0.26100.0 to < 10.0.26100.32230affected

References