Devices in a number of Cisco switch types experienced significant reboot loops due to a pervasive firmware problem in the ...

Update: Cisco statement added at the end of the article. Multiple Cisco switch models are suddenly experiencing reboot loops after logging fatal DNS client errors, according to reports seen by ...

They also noticed that it was devices using Cloudflare's popular DNS server at 1.1.1.1 that crashed; this turned out to be ...

Cisco has seen double the trouble with a domain name system (DNS) issue affecting some of its switches, alongside a new vulnerability exposed in its network access control kit.