My Firewall Plus 5.0 Build 1119 does not verify if explorer.exe is running before launching iexplore.exe from the "Test Your Firewall" feature, which allows local users to gain SYSTEM privileges.
https://exchange.xforce.ibmcloud.com/vulnerabilities/30476
http://www.vupen.com/english/advisories/2006/4635
http://www.securityfocus.com/bid/21228
http://www.securityfocus.com/archive/1/452233/100/0/threaded
http://securitytracker.com/id?1017267