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.
The vendor has addressed this issue through a product update that can be found at: http://www130.nortelnetworks.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=567877&RenditionID=&poid=null