CVE-2025-21182 HIGH

CVE-2025-21182: Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability

Vendor Microsoft
Product Windows 11 Version 24H2
Weakness CWE-415
Published February 11, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

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

What the vulnerability does

01Description

Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability

Key dates

02Disclosure timeline

February 11, 2025 CVE published
February 26, 2026 Record updated