QNAP’s Network Attached Storage(NAS) is the friend from SME users. Even thought IT Dept, they are also satisfy with NAS. Since the price is affordable and provides plug and play function. It is common that NAT on firewall will be deploy with Hide NAT. As a result your QNAP’s will be receive the new patch update. At the same time it benefits to hacker once vulnerability occurs.
Please remind that you have to create firewall rule deny NAS go to internet at this moment.
It is better to do the remediation now. See below: