Media Player Classic (MPC) 6.4.9.0 allows user-assisted remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted FLV file.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2007-3646
http://www.securityfocus.com/bid/24830
http://www.securityfocus.com/archive/1/473212