CVE-2025-21183

HIGH
2025-02-11 [email protected]
7.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:26 vuln.today
Patch Released
Mar 28, 2026 - 18:26 nvd
Patch available
CVE Published
Feb 11, 2025 - 18:15 nvd
HIGH 7.4

Tags

Microsoft Information Disclosure Windows 11 24h2 Windows Server 2025 Windows

Description

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

Analysis

Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.4), this vulnerability is no authentication required.

Technical Context

This vulnerability is classified under CWE-415. Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability Affected products include: Microsoft Windows 11 24H2, Microsoft Windows Server 2025.

Affected Products

Microsoft Windows 11 24H2, Microsoft Windows Server 2025.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +37
POC: 0

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CVE-2025-21183 vulnerability details – vuln.today
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