Heap-based buffer overflow in the PPlayer.XPPlayer.1 ActiveX control in pplayer.dll_1_work in Xunlei Thunder 5.7.4.401 allows remote attackers to execute arbitrary code via a long string in a FlvPlayerUrl property value. NOTE: some of these details are obtained from third party information.
http://www.vupen.com/english/advisories/2007/3982
http://www.securityfocus.com/bid/26536