Buffer overflow in nlps_server in Sun Solaris x86 2.4, 2.5, and 2.5.1 allows remote attackers to execute arbitrary code as root via a long string beginning with "NLPS:002:002:" to the listen (aka System V listener) port, TCP port 2766.
http://www.securityfocus.com/data/vulnerabilities/exploits/nlps_server.c
http://www.securityfocus.com/bid/2319
http://security-protocols.com/sploits/unsorted_exploits/nlps_server.c