Nortel Communication Server 1000 4.50.x allows remote attackers to obtain Web application structure via unknown vectors related to "web resources to phones and administrators."
Nortel Networks Contivity VPN Client displays a different error message depending on whether the username is valid or invalid, which could allow remote attackers to gain sensitive information.
cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to read arbitrary files by specifying the filename in a parameter to the script.