Compaq/Microcom 6000 Access Integrator does not disconnect a client after a certain number of failed login attempts, which allows remote attackers to guess usernames or passwords via a brute force attack.
ypbind in Compaq Tru64 4.0F, 4.0G, 5.0A, 5.1 and 5.1A allows remote attackers to cause the process to core dump via certain network packets generated by nmap.