Multiple buffer overflows in the torrent parsing implementation in Free Download Manager (FDM) 2.5 Build 758 and 3.0 Build 844 allow remote attackers to execute arbitrary code via (1) a long file name within a torrent file, (2) a long tracker URL in a torrent file, or (3) a long comment in a torrent file.
http://www.vupen.com/english/advisories/2009/0302
http://www.securityfocus.com/bid/33555
http://www.securityfocus.com/archive/1/500605/100/0/threaded