Stack-based buffer overflow in Streaming Download Project (SDP) Downloader 2.3.0 allows remote attackers to execute arbitrary code via a long .asf URL in the HREF attribute of a REF element in a .asx file.
https://www.exploit-db.com/exploits/8536
https://www.exploit-db.com/exploits/8531
http://www.vupen.com/english/advisories/2009/1171