Multiple unspecified vulnerabilities in Nortel Communication Server 1000 4.50.x allow remote attackers to execute arbitrary commands to gain privileges, obtain sensitive information, or cause a denial of service via unknown vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/41803
http://www.voipshield.com/research-details.php?id=29
http://www.securityfocus.com/bid/28691
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=713455
http://securitytracker.com/id?1019849