Unspecified vulnerability in the Windows OpenType Compact Font Format (CFF) driver in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista SP1 and SP2, Server 2008 SP2 and R2, and Windows 7 allows local users to execute arbitrary code via unknown vectors related to improper validation when copying data from user mode to kernel mode, aka "OpenType CFF Font Driver Memory Corruption Vulnerability."