Improper access control in Windows and Windows Server - CVE-2025-27738
Published: April 9, 2025
Vulnerability identifier: #VU107279
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-27738
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in Windows Resilient File System (ReFS). A remote user can bypass implemented security restrictions and gain unauthorized access to sensitive information.
How to mitigate CVE-2025-27738
Install updates from vendor's website.