Untrusted search path vulnerability in Entity Framework in ADO.NET in Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, and 4 allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .NET application, aka ".NET Framework Insecure Library Loading Vulnerability."