Cisco whispers the three little words to really get an ASR 9000 net admin's blood pumping: Remote unauthenticated access

Critical patch available now for those with vulnerable kit

Cisco has issued a security patch for a flaw in some of its routers that can be exploited by miscreants to potentially rifle through telecommunications networks.…

via The Register - Data Centre: Networks
http://go.theregister.com/feed/www.theregister.co.uk/2019/04/18/cisco_critical_patch/