Untrusted search path vulnerability in TortoiseSVN 1.6.10 Build 19898 and earlier allows local users and possibly remote attackers to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse dwmapi.dll that is located in the same folder as a file that is processed by Tortoise. NOTE: this is only a vulnerability when a file extension is associated with TortoiseProc or TortoiseMerge which is not the default.