CyberICT

CVE-2026-34340

Microsoft · Published May 12, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Windows Projected File System Elevation of Privilege Vulnerability. Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

Affected Products

  • Windows 10 Version 1809 for 32-bit Systems
  • Windows Server 2022
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems

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