Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-40369

Windows Kernel Elevation of Privilege Vulnerability

Description

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges 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 24H2

  • 10.0.26100.0 to < 10.0.26100.8457affected

Microsoft Windows 11 Version 25H2

  • 10.0.26200.0 to < 10.0.26200.8457affected

Microsoft Windows 11 version 26H1

  • 10.0.28000.0 to < 10.0.28000.2113affected

Microsoft Windows Server 2025

  • 10.0.26100.0 to < 10.0.26100.32860affected

Microsoft Windows Server 2025 (Server Core installation)

  • 10.0.26100.0 to < 10.0.26100.32860affected

References