envd daemon in HP-UX B.11.00 through B.11.11 allows local users to obtain privileges via unknown attack vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1572
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1429
https://exchange.xforce.ibmcloud.com/vulnerabilities/23039
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00547561
http://www.vupen.com/english/advisories/2005/2357
http://www.securityfocus.com/bid/15359