CVE-2025-59206

Microsoft · Published October 14, 2025

7.4

CVSS v3.1

HIGH

Patch availableGet patch

Description

Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability. What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Affected Products

Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 25H2 for ARM64-based Systems
Windows Server 2025 (Server Core installation)
Windows 11 Version 24H2 for ARM64-based Systems

CVSS Vector

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