There is a logic error vulnerability in several smartphones. The software does not properly restrict certain operation when the Digital Balance function is on. Successful exploit could allow the attacker to bypass the Digital Balance limit after a series of operations.Affected product versions include:HUAWEI Mate 20 versions Versions earlier than 10.0.0.188(C00E74R3P8);HUAWEI Mate 30 Pro versions Versions earlier than 10.0.0.203(C00E202R7P2).

HUAWEI Mate 20 smartphones with versions earlier than 10.0.0.185(C00E74R3P8) have an improper authorization vulnerability. The system has a logic judging error under certain scenario, successful exploit could allow the attacker to switch to third desktop after a series of operation in ADB mode.

Mate20 Huawei smartphones versions earlier than HMA-AL00C00B175 have an out-of-bounds read vulnerability. An attacker with a high permission runs some specific commands on the smartphone. Due to insufficient input verification, successful exploit may cause out-of-bounds read of the memory and the system abnormal.