CyberICT

CVE-2026-109453

Microsoft · Published October 13, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Virtual Hard Disk (VHD) Miniport Driver Elevation of Privilege Vulnerability. Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

Affected Products

  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2012 (Server Core installation)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C