HP JetDirect printers versions G.08.20 and H.08.20 and earlier allow remote attackers to cause a denial of service via a malformed FTP quote command.
HP JetDirect printers allow remote attackers to obtain the administrative password for the (1) web and (2) telnet services via an SNMP request to the variable (.iso.3.6.1.4.1.11.2.3.9.4.2.1.3.9.1.1.0.