CVE-2025-21183

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

Score

CVSS 3.1 7.4 High

Status

Analyzed - secure@microsoft.com

Published

2025-02-11

Last modified

2026-02-26

Weaknesses

CWE-415

Affected products

• Windows 11 24H2 (Microsoft)
• Windows 11 24h2 (Microsoft)
• Windows Server 2025 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21183