Permissions, Privileges, and Access Controls in Microsoft Windows and Windows Server - CVE-2025-50170

Vulnerability identifier: #VU114035

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-50170

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Windows Cloud Files Mini Filter Driver, which leads to security restrictions bypass and privilege escalation.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.6216, 10 22H2 10.0.19045.6216, 10 1507 10.0.10240.21100, 10 1809 10.0.17763.7678, 11 22H2 10.0.22621.5768, 11 23H2 10.0.22631.5768, 11 24H2 10.0.26100.4851, 11 24H2 10.0.26100.4946
Windows Server - addressed in versions 2012 R2 6.3.9600.22725, 2019 10.0.17763.7678, 2022 23H2 10.0.25398.1791, 2022 10.0.20348.3989, 2022 10.0.20348.4052, 2025 10.0.26100.4851, 2025 10.0.26100.4946

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-50170

• Privilege escalation in Microsoft Windows Cloud Files Mini Filter Driver