There is a path traversal vulnerability in some Huawei products. The vulnerability is due to that the software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly validate the pathname. Successful exploit could allow the attacker to access a location that is outside of the restricted directory by a crafted filename. Affected product versions include:HUAWEI Mate 20 9.0.0.195(C01E195R2P1), 9.1.0.139(C00E133R3P1);HUAWEI Mate 20 Pro 9.0.0.187(C432E10R1P16), 9.0.0.188(C185E10R2P1), 9.0.0.245(C10E10R2P1), 9.0.0.266(C432E10R1P16), 9.0.0.267(C636E10R2P1), 9.0.0.268(C635E12R1P16), 9.0.0.278(C185E10R2P1); Hima-L29C 9.0.0.105(C10E9R1P16), 9.0.0.105(C185E9R1P16), 9.0.0.105(C636E9R1P16); Laya-AL00EP 9.1.0.139(C786E133R3P1); OxfordS-AN00A 10.1.0.223(C00E210R5P1); Tony-AL00B 9.1.0.257(C00E222R2P1).

There is a buffer overflow vulnerability in several Huawei products. The system does not sufficiently validate certain configuration parameter which is passed from user that would cause buffer overflow. The attacker should trick the user into installing and running a malicious application with a high privilege, successful exploit may cause code execution. Affected product include Huawei HONOR 20 PRO, Mate 20, Mate 20 Pro, Mate 20 X, P30, P30 Pro, Hima-L29C, Laya-AL00EP, Princeton-AL10B, Tony-AL00B, Yale-L61A, Yale-TL00B and YaleP-AL10B.

Bastet module of some Huawei smartphones with Versions earlier than Emily-AL00A 9.0.0.182(C00E82R1P21), Versions earlier than Emily-TL00B 9.0.0.182(C01E82R1P21), Versions earlier than Emily-L09C 9.0.0.203(C432E7R1P11), Versions earlier than Emily-L29C 9.0.0.203(C432E7R1P11), Versions earlier than Emily-L29C 9.0.0.202(C185E2R1P12) have a double free vulnerability. An attacker tricks the user into installing a malicious application, which frees on the same memory address twice. Successful exploit could result in malicious code execution.

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.