CVE-2025-21183

HighCVSS 7.4/10Last modified Jun 17, 2026

Description

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

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

VendorProductVersions
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.3194
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.3194
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.3194

References

Timeline

Published
Feb 11, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2025-21183: High severity, CVSS 7.4 | Vulnix