CVE-2025-50170

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

State: Published
Severity: 7.8 High
Published: Aug 12, 2025
Updated: Feb 13, 2026
Reserved: Jun 13, 2025

Description

Improper handling of insufficient permissions or privileges in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-280 Improper Handling of Insufficient Permissions or Privileges

Affected Products

Product	Versions
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.7678Affected
Windows 10 Version 21H2Microsoft	10.0.19044.0 to before 10.0.19044.6216Affected
Windows 10 Version 22H2Microsoft	10.0.19045.0 to before 10.0.19045.6216Affected
Windows 11 version 22H2Microsoft	10.0.22621.0 to before 10.0.22621.5768Affected
Windows 11 version 22H3Microsoft	10.0.22631.0 to before 10.0.22631.5768Affected
Windows 11 Version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.5768Affected
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.4946Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.7678Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.7678Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.4052Affected
Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft	10.0.25398.0 to before 10.0.25398.1791Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.4946Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.4946Affected

References

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerabilityvendor-advisorypatch

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