Unspecified vulnerability in xntpd of HP-UX 10.20 through 11.11 allows remote attackers to cause a denial of service (hang) via unknown attack vectors.
The PMTU discovery procedure used by HP-UX 10.30 and 11.00 for determining the optimum MTU generates large amounts of traffic in response to small packets, allowing remote attackers to cause the system to be used as a packet amplifier.
Vulnerability in telnet service in HP-UX 10.30 allows attackers to cause a denial of service.
Vulnerability in HP-UX mediainit program.