VMware vSphere Data Protection (VDP) 6.1.x, 6.0.x, 5.8.x, and 5.5.x contains a deserialization issue. Exploitation of this issue may allow a remote attacker to execute commands on the appliance.
https://www.exploit-db.com/exploits/42152/
http://www.vmware.com/security/advisories/VMSA-2017-0010.html