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.
Multiple unknown vulnerabilities in the "r-cmnds" (1) remshd, (2) rexecd, (3) rlogind, (4) rlogin, (5) remsh, (6) rcp, (7) rexec, and (8) rdist for HP-UX 10.00 through 11.00 allow attackers to gain privileges or access files.
Vulnerability in Predictive on HP-UX 11.0 and earlier, and MPE/iX 5.5 and earlier, allows attackers to compromise data transfer for Predictive messages (using e-mail or modem) between customer and Response Center Predictive systems.