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CVE-2025-21182— Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 11 Version 24H2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Resilient File System（ReFS）是美国微软（Microsoft）公司的弹性文件系统。 Microsoft Windows Resilient File System（ReFS）存在资源管理错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows Server 2025 (Server Core installation),Windows 11 Version 24H2 for ARM64-based Systems,Windo

CVSS 7.4 · High EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2025-21182

Vulnerability Information
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Vulnerability Title
Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Resilient File System 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Resilient File System（ReFS）是美国微软（Microsoft）公司的弹性文件系统。 Microsoft Windows Resilient File System（ReFS）存在资源管理错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows Server 2025 (Server Core installation),Windows 11 Version 24H2 for ARM64-based Systems,Windo
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.3194 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.3194 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.3194 -

II. Public POCs for CVE-2025-21182

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III. Intelligence Information for CVE-2025-21182

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Vendor Advisories for CVE-2025-21182 (1)

Same Patch Batch · Microsoft · 2025-02-11 · 55 CVEs total

CVE-2025-21198 9.0 CRITICAL Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability
CVE-2025-21406 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21201 8.8 HIGH Windows Telephony Server Remote Code Execution Vulnerability
CVE-2025-21190 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21200 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21407 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21371 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-21369 8.8 HIGH Microsoft Digest Authentication Remote Code Execution Vulnerability
CVE-2025-21368 8.8 HIGH Microsoft Digest Authentication Remote Code Execution Vulnerability
CVE-2025-21410 8.8 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-21208 8.8 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-21376 8.1 HIGH Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability
CVE-2025-21400 8.0 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2025-21387 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-21358 7.8 HIGH Windows Core Messaging Elevation of Privileges Vulnerability
CVE-2025-21367 7.8 HIGH Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
CVE-2025-21359 7.8 HIGH Windows Kernel Security Feature Bypass Vulnerability
CVE-2025-21392 7.8 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2025-21386 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2025-21381 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability

Showing top 20 of 55 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 11 Version 24H2
Same vendor: Microsoft
Same weakness: CWE-415

V. Comments for CVE-2025-21182

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