High

DATE	CVE	VULNERABILITY TITLE	RISK
2007-10-23	CVE-2007-5640	Remote Denial of Service vulnerability in Nortel UNIStim IP Phone The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), Mobile Voice Client, and other product lines, allow remote attackers to block calls and force re-registration via a resume message to the Signaling Server that has a spoofed source IP address for the phone. network nortel	7.1
2007-10-23	CVE-2007-5639	Denial of Service vulnerability in Nortel IP Phones UNIStim Messages The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and other Nortel IP Phone, Mobile Voice Client, and WLAN Handsets products allow remote attackers to cause a denial of service (device hang) via a flood of Mute and UnMute messages that have a spoofed source IP address for the Signaling Server. network nortel	7.1