Vulnerabilities > Nortel > Meridian Option 61C

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-2007-5638 Information Exposure vulnerability in Nortel products
The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines, use only 65536 different values in the 32-bit ID number field of an RUDP datagram, which makes it easier for remote attackers to guess the RUDP ID and spoof messages.
network
nortel CWE-200
4.3
2007-10-23 CVE-2007-5637 Information Exposure vulnerability in Nortel products
The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), and other product lines allow remote attackers to eavesdrop on the physical environment via an Open Audio Stream message that enables "surveillance mode." NOTE: issues relating to a small ID number space can be leveraged to make this attack easier.
network
nortel CWE-200
4.3
2007-10-19 CVE-2007-5591 Remote Denial of Service vulnerability in Nortel CS1000 ELAN
The CS1000 signaling server in Nortel Enterprise VoIP-Core-CS 1000M Chassis/Cabinet, Enterprise VoIP-Core-CS 1000E and 1000S, Meridian-Core-Option 11C Chassis and Cabinet, and Meridian-Core-Option 51C, 61C, and 81C allows remote attackers to cause a denial of service (telephony application outage) via a flood of packets to Embedded LAN (ELAN) ports.
network
low complexity
nortel
7.8