the problem was 2032 and 2332 I see in settings... UPNP activated...
UPnP is available across all the firmware versions.
Best to disable it in the web GUI.
But I think you have a different question -
so my question is ... Should I upgrade the firmwares?
I suppose what you are asking is :
The firmware of 5.4.4 or older has the 'Hikvision backdoor vulnerability', which is why you can reset the password with the
@bp2008 tool, or extract the configuration file without authentication.
So - should you do a conversion to EN from CN and update to firmware that does not have the backdoor?
The answer is - if the devices are not in any way accessible from the internet, or other unknown sources, the backdoor should not present a big risk.
The convert / update process is pretty straightforward and many have done it - but it is extra work and does carry a small amount of risk.