Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allow remote attackers to execute arbitrary code via a crafted (1) file name or (2) subfolder name that triggers use of unallocated memory as the destination of a copy operation, aka "Windows Filename Parsing Vulnerability."