Stack-based buffer overflow in mplayer2.exe in Microsoft Windows Media Player (WMP) 6.4, when used with the 3ivx 4.5.1 or 5.0.1 codec, allows remote attackers to execute arbitrary code via a certain .mp4 file, possibly a related issue to CVE-2007-6402.
http://www.vupen.com/english/advisories/2007/4141
http://www.securitytracker.com/id?1019064
http://www.securityfocus.com/archive/1/484779/100/0/threaded