Facts on Testing and Securing Wifi Routers and other IOT devices
If you use a device with a Broadcom or Cypress WiFi chipset, you can protect yourself against attacks by using the newer WPA3 WiFi authentication protocol.
https://www.documentcloud.org/documents/4109401-KRACK-Attacks.html
"The core of the attack, hence its name, is that the attacker tricks the connected party into reinstalling an already-in-use key,"
Not trivial but huge in scope.
""If your device supports Wi-Fi, it is most likely affected,"