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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2026-20838

Windows Kernel Information Disclosure Vulnerability

Description

Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.

Affected products

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

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 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