Vulnerabilities > Nortel

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
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
2007-10-23 CVE-2007-5636 Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Nortel IP Softphone 2050
Buffer overflow in the Nortel UNIStim IP Softphone 2050 allows remote attackers to cause a denial of service (application abort) and possibly execute arbitrary code via a flood of invalid characters to the RTCP port (5678/udp) that triggers a Windows error message, aka "extraneous messaging."
network
low complexity
nortel CWE-119
7.5
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
2007-05-30 CVE-2007-2886 Remote Denial of Service vulnerability in Nortel Communications Server 1000E/1000M/1000S
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.
network
low complexity
nortel
5.0
2007-04-27 CVE-2007-2334 Remote Unauthorized Access vulnerability in Nortel Contivity and VPN Router 5000
Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx before 5_05.304, and 6.x before 6_05.140 has two template HTML files lacking certain verification tags, which allows remote attackers to access the administration interface and change the device configuration via certain requests.
network
low complexity
nortel
7.5
2007-04-27 CVE-2007-2333 Remote Unauthorized Access vulnerability in Nortel Contivity, VPN Router 5000 and VPN Router Portfolio
Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 5_05.149, 5_05.3xx before 5_05.304, and 6.x before 6_05.140 includes the FIPSecryptedtest1219 and FIPSunecryptedtest1219 default accounts in the LDAP template, which might allow remote attackers to access the private network.
network
low complexity
nortel
critical
10.0
2007-04-27 CVE-2007-2332 Remote Unauthorized Access vulnerability in Nortel VPN Routers
Nortel VPN Router (aka Contivity) 1000, 2000, 4000, and 5000 before 6_05.140 uses a fixed DES key to encrypt passwords, which allows remote authenticated users to obtain a password via a brute force attack on a hash from the LDAP store.
network
low complexity
nortel
critical
9.0