Out-of-bounds read in Microsoft Windows and Windows Server - CVE-2025-21271
Published: January 14, 2025
Vulnerability identifier: #VU102710
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-2025-21271
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary condition in Windows Cloud Files Mini Filter Driver. A local user can trigger an out-of-bounds read error and gain elevated privileges on the target system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2025-21271
Install updates from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.5371, 10 22H2 10.0.19045.5371, 10 1809 10.0.17763.6775, 11 24H2 10.0.26100.3107
Windows Server - addressed in versions 2016 10.0.14393.7785, 2022 10.0.20348.3091
Windows Server - addressed in versions 2016 10.0.14393.7785, 2022 10.0.20348.3091