Nextcloud: Disclosed Version of PORTS SSH|HTTP|SSL

I found Version of ports are disclosed ,But the intersting that SSH port is open and showing his version == OpenSSH 7.2p2 Ubuntu 4ubuntu2.4 Ubuntu Linux; protocol 2.0 F:302383 Searching I have found that this version has common vulunrablitie https://vuldb.com/?id.89622 So it's not good to disclos...