"Cyber-threat intelligence firm Checkpoint Research (CPR) spotted a critical vulnerability in the Unisoc Tiger T700 chips that power the Motorola Moto G20, E30 and E40 smartphones. The components, which replaced MediaTek’s chips in the aforementioned devices due to global shortages, have been marked as threat vectors due to a stack overflow vulnerability... More specifically, due to the flaw, the smartphones were seen omitting the check to make sure that the modem’s connection handler was reading a valid IMSI or similar subscriber ID when connecting to an LTE network..." https://www.itpro.co.uk/network-int...elay-new-microsoft-exchange-server-four-years