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Windows 11 24h2 CVE-2025-21183

HIGH
Double Free (CWE-415)
2025-02-11 secure@microsoft.com
Microsoft Information Disclosure Windows 11 24h2 Windows Server 2025 Windows
7.4
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.4 HIGH
AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionCVE.org

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

AnalysisAI

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

Technical ContextAI

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.

RemediationAI

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.

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CVE-2025-21183 vulnerability details – vuln.today
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