The firmware for routers from one of the largest Internet Service Providers (ISPs) in the UK has been updated automatically for all online terminals. In October 2016, researchers from penetration-testing firm Context Information Security tested the security of the devices. They started with extracting the firmware image and, after several unsuccessful attack methods, shifted towards the backup/restore mechanism. This was the starting point for figuring out a way to obtain administrative rights (root shell) on the system and gaining complete control.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/super-hub-routers-get-patch-exploit-chain/