CVE-2014-4115: Microsoft Windows Server 2003

High severity, CVSS 7.2. EPSS: 2.9% chance of exploitation in the next 30 days.

fastfat.sys (aka the FASTFAT driver) in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 does not properly allocate memory, which allows physically proximate attackers to execute arbitrary code or cause a denial of service (reserved-memory write) by connecting a crafted USB device, aka "Microsoft Windows Disk Partition Driver Elevation of Privilege Vulnerability."

Affected products

• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version
• Microsoft Windows Vista: any version

Published 2014-10-15. Last modified 2026-06-17.