With document ID c02872182 on 2011/06/29 an advisory for HP Data Protector (6.0, 6.10, 6.11 and 6.20) was released, which describes a potential security problem when using Data Protector and in some circumstances a remote execution of arbitrary code may possible.
There is a solution, installation of Data Protector 6.2 and enable the encrypted communication between the Cell Server and all clients of the cell. The Windows operating systems are affected.
The complete advisory can be read here: http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02872182&jumpid=em_alerts_us-us_Jun11_xbu_all_all_1318416_90181_software_critical_005_38