Unspecified vulnerability in the Map I/O Service (xpwmap) in Hitachi XP/W on HI-UX/WE2 before 20070319, and XP/W on HP-UX before 20070405, allows remote attackers to cause a denial of service via certain data to the service port.
https://exchange.xforce.ibmcloud.com/vulnerabilities/34653
http://www.vupen.com/english/advisories/2007/2022
http://www.securityfocus.com/bid/24262
http://www.hitachi-support.com/security_e/vuls_e/HS07-013_e/index-e.html