PAX Technology PAX A920 Pro PayDroid 8.1suffers from a Race Condition vulnerability, which allows attackers to bypass the payment software and force the OS to boot directly to Android during the boot process. NOTE: the vendor disputes this because the attack is not feasible: the home launcher will be loaded before any user applications.

PAX A930 device with PayDroid_7.1.1_Virgo_V04.3.26T1_20210419 can allow an unauthorized attacker to perform privileged actions through the execution of specific binaries listed in ADB daemon. The attacker must have physical USB access to the device in order to exploit this vulnerability.