像其他rs have said, there's probably no reason to panic if access to the admin interface is itself properly restricted. But this is definitely a serious problem that needs to be dealt with, especially since it looks like info on this vulnerability have been in circulation outside the US government:...

Updated flawlessly on our 951Ui-2HnD, used as an extra AP. No issues. Will do the main firewall/router tonight to avoid protests from the fam.