Vulnerabilities (CVE)

Filtered by vendor Nortel Subscribe
Filtered by product Communications Server
Total 5 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2007-5637 1 Nortel 26 Business Communications Manager, Centrex Ip Client Manager, Centrex Ip Element Manager and 23 more 2023-12-10 4.3 MEDIUM N/A
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.
CVE-2007-5640 1 Nortel 26 Business Communications Manager, Centrex Ip Client Manager, Centrex Ip Element Manager and 23 more 2023-12-10 7.1 HIGH N/A
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. NOTE: the attack is more disruptive if a new spoofed resume message is sent after each re-registration.
CVE-2007-5638 1 Nortel 26 Business Communications Manager, Centrex Ip Client Manager, Centrex Ip Element Manager and 23 more 2023-12-10 4.3 MEDIUM N/A
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. NOTE: this can be leveraged for an eavesdropping attack by sending many Open Audio Stream messages.
CVE-2007-5591 1 Nortel 6 Communications Server, Meridian Option 11c, Meridian Option 51c and 3 more 2023-12-10 7.8 HIGH N/A
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.
CVE-2007-2886 1 Nortel 1 Communications Server 2023-12-10 5.0 MEDIUM N/A
Unspecified vulnerability in the Nortel CS 1000 M media card in Enterprise VoIP-Core-CS 1000E, 1000M, and 1000S 04.50W before 20070523 in Meridian/CS 1000 allows remote attackers to cause a denial of service (card hang) via unspecified vectors.