In case of using an invalid android verified boot signature with very large length, an integer underflow occurs in Snapdragon Mobile in SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 810, SD 820, SD 835, SDM630, SDM636, SDM660, Snapdragon_High_Med_2016. User keystore signature is ignored in boot and can lead to bypass boot image signature verification in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Mobile in MDM9607, MDM9640, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 845 / SD 85... While processing a packet decode request in MQTT, Race condition can occur leading to an out-of-bounds access in snapdragon mobile and snapdragon wear in versions MDM9206, MDM9607, SD 210/SD 212/SD 205, SD 427, SD 435, SD 450, SD 625, SD 636, SD 835, SDA660, SDM630, SDM660, Snapd... Improper length check while processing an MQTT message can lead to heap overflow in snapdragon mobile and snapdragon wear in versions MDM9206, MDM9607, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 835, SDA660, SDM630, SDM660