afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 Windows Server 2003 SP2 Windows Vista SP2 Windows Server 2008 SP2 R2 and R2 SP1 and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate user-mode input passed to kernel mode which allows local users to gain privileges via a crafted application aka \AfdPoll Elevation of Privilege Vulnerability.\