Buffer overflow in the IUAComFormX ActiveX control in uacomx.ocx 2.0.1 in the eCentrex VOIP Client module allows remote attackers to execute arbitrary code via a long Username argument to the ReInit method.
https://www.exploit-db.com/exploits/4299
https://exchange.xforce.ibmcloud.com/vulnerabilities/36129
http://www.vupen.com/english/advisories/2007/2954
http://www.securitytracker.com/id?1018596