CVE-2025-21183

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

State: Published
Severity: 7.4 High
Published: Feb 11, 2025
Updated: Feb 26, 2026
Reserved: Dec 5, 2024

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.4 High	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	microsoft

Weaknesses

CWE-415 Double Free

Affected Products

Product	Versions
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.3194Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.3194Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.3194Affected

References

Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerabilityvendor-advisorypatch

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