Use-after-free in Windows Server - CVE-2025-21315
Published: January 14, 2025
Vulnerability identifier: #VU102634
CSH Severity: Low
CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-21315
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Microsoft Brokering File System. A local user can win a race condition and gain elevated privileges on the target system.
Affected software
Windows Server
How to mitigate CVE-2025-21315
Install updates from vendor's website.
Windows Server - addressed in versions 2016 10.0.14393.7785, 2022 23H2 10.0.25398.1369, 2025 10.0.26100.2894