The InstallProduct routine in the Verisign VUpdater.Install (aka i-Nav) ActiveX control does not verify Microsoft Cabinet (.CAB) files, which allows remote attackers to run an arbitrary executable file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26375
http://www.zerodayinitiative.com/advisories/ZDI-06-014.html
http://www.vupen.com/english/advisories/2006/1763
http://www.securityfocus.com/bid/17939
http://www.securityfocus.com/archive/1/433589/100/0/threaded
http://securitytracker.com/id?1016059