Four newly identified vulnerabilities could affect 900 million Android devices, Check Point researchers disclosed. The vulnerabilities, which the researchers dubbed “QuadRooter,” affect Android devices that use Qualcomm chipsets. They exist in the chipset software drivers. The drivers, which control communications between chipset components, are incorporated into Android builds manufacturers develop for their devices, so they’re preinstalled on devices and can be fixed only through installation of a patch from the distributor or carrier.