Another team, Pedro Ribeiro and Radek Domanski who call themselves Flashback targeted the LAN and WAN interfaces of the TP-Link AC1750 Smart Wi-Fi router and were successful. They also succeeded in cracking both LAN and WAN interfaces of Netgear Nighthawk Smart Wi-Fi Router R6700.
Most of these devices were hacked on the first day, and the second day is still going on and we are likely to see more exploits of some of the already existing devices and more. We will update this space as and when the day two ends.
As mentioned, the Pwn2Own Tokyo 2019 team will share these exploits with the respective companies to get them fixed.