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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2025-55687

Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Resilient File System (ReFS) allows an unauthorized attacker to elevate privileges locally.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft Windows 10 Version 1507

  • 10.0.10240.0 to < 10.0.10240.21161affected

Microsoft Windows 10 Version 1607

  • 10.0.14393.0 to < 10.0.14393.8519affected

Microsoft Windows 10 Version 1809

  • 10.0.17763.0 to < 10.0.17763.7919affected

Microsoft Windows 10 Version 21H2

  • 10.0.19044.0 to < 10.0.19044.6456affected

Microsoft Windows 10 Version 22H2

  • 10.0.19045.0 to < 10.0.19045.6456affected

Microsoft Windows 11 version 22H2

  • 10.0.22621.0 to < 10.0.22621.6060affected

Microsoft Windows 11 version 22H3

  • 10.0.22631.0 to < 10.0.22631.6060affected

Microsoft Windows 11 Version 23H2

  • 10.0.22631.0 to < 10.0.22631.6060affected

Microsoft Windows 11 Version 24H2

  • 10.0.26100.0 to < 10.0.26100.6899affected

Microsoft Windows 11 Version 25H2

  • 10.0.26200.0 to < 10.0.26200.6899affected

Microsoft Windows Server 2012

  • 6.2.9200.0 to < 6.2.9200.25722affected

Microsoft Windows Server 2012 (Server Core installation)

  • 6.2.9200.0 to < 6.2.9200.25722affected

Microsoft Windows Server 2012 R2

  • 6.3.9600.0 to < 6.3.9600.22824affected

Microsoft Windows Server 2012 R2 (Server Core installation)

  • 6.3.9600.0 to < 6.3.9600.22824affected

Microsoft Windows Server 2016

  • 10.0.14393.0 to < 10.0.14393.8519affected

Microsoft Windows Server 2016 (Server Core installation)

  • 10.0.14393.0 to < 10.0.14393.8519affected

Microsoft Windows Server 2019

  • 10.0.17763.0 to < 10.0.17763.7919affected

Microsoft Windows Server 2019 (Server Core installation)

  • 10.0.17763.0 to < 10.0.17763.7919affected

Microsoft Windows Server 2022

  • 10.0.20348.0 to < 10.0.20348.4294affected

Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

  • 10.0.25398.0 to < 10.0.25398.1913affected

Microsoft Windows Server 2025

  • 10.0.26100.0 to < 10.0.26100.6899affected

Microsoft Windows Server 2025 (Server Core installation)

  • 10.0.26100.0 to < 10.0.26100.6899affected

References