Huawei mobile phones Ever-L29B versions earlier than 10.0.0.180(C185E6R3P3), earlier than 10.0.0.180(C432E6R1P7), earlier than 10.0.0.180(C636E5R2P3); HUAWEI Mate 20 RS versions earlier than 10.0.0.175(C786E70R3P8); HUAWEI Mate 20 X versions earlier than 10.0.0.176(C00E70R2P8); and Honor Magic2 versions earlier than 10.0.0.175(C00E59R2P11) have an improper authorization vulnerability. Due to improper authorization of some function, attackers can bypass the authorization to perform some operations.

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.

There is a path traversal vulnerability on Huawei Share. The software does not properly validate the path, an attacker could crafted a file path when transporting file through Huawei Share, successful exploit could allow the attacker to transport a file to arbitrary path on the phone. Affected products: Mate 20 X versions earlier than Ever-L29B 9.1.0.300(C432E3R1P12), versions earlier than Ever-L29B 9.1.0.300(C636E3R2P1), and versions earlier than Ever-L29B 9.1.0.300(C185E3R3P1).

There is a Factory Reset Protection (FRP) bypass vulnerability on several smartphones. The system does not sufficiently verify the permission, an attacker could do a certain operation on certain step of setup wizard. Successful exploit could allow the attacker bypass the FRP protection. Affected products: Mate 20 X, versions earlier than Ever-AL00B 9.0.0.200(C00E200R2P1); Mate 20, versions earlier than Hima-AL00B/Hima-TL00B 9.0.0.200(C00E200R2P1); Honor Magic 2, versions earlier than Tony-AL00B/Tony-TL00B 9.0.0.182(C00E180R2P2).