The UpdateEngine class in the LiveUpdate ActiveX control (LiveUpdate16.DLL 17.2.56), as used in Revit Architecture 2009 SP2 and Autodesk Design Review 2009, allows remote attackers to execute arbitrary programs via the second argument to the ApplyPatch method.
https://www.exploit-db.com/exploits/6630
https://exchange.xforce.ibmcloud.com/vulnerabilities/45521
http://www.vupen.com/english/advisories/2008/2704
http://www.securityfocus.com/bid/31490
http://www.securityfocus.com/archive/1/496847/100/0/threaded
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=12452198&linkID=11705366
http://securityreason.com/securityalert/4361
http://retrogod.altervista.org/9sg_autodesk_revit_arch_2009_exploit.html
http://images.autodesk.com/adsk/files/live_update_hotfix0.html