From everything i could see this only seems to be on FXOS so if you are using a firepower firewall, then it looks like a possibility. what they mean by "default" is that in the base factory config, the vulnerability is there..
you can also contact PSIRT (Cisco Product Security Incident Response Team) PSIRT link and ask for confirmation or open a TAC case.. and they will get back to you..
here are the associated bug details:
CSCvi84381
https://bst.cisco.com/quickview/bug/CSCvi84381
which is a duplicate of
https://bst.cisco.com/bugsearch/bug/CSCvg03807