BitTorrent and uTorrent allow remote attackers to inject command line parameters and execute arbitrary commands via a crafted URL using the (1) bittorrent or (2) magnet protocol.
Untrusted search path vulnerability in uTorrent 2.0.3 and earlier allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse plugin_dll.dll, userenv.dll, shfolder.dll, dnsapi.dll, dwmapi.dll, iphlpapi.dll, dhcpcsvc.dll, dhcpcsvc6.dll, or rpcrtremote.dll that is located in the same folder as a .torrent or .btsearch file.