P30 smartphones with versions earlier than ELLE-AL00B 9.1.0.193(C00E190R1P21) have an out of bounds read vulnerability. The system does not properly validate certain length parameter which an application transports to kernel. An attacker tricks the user to install a malicious application, successful exploit could cause out of bounds read and information disclosure.

P30, Mate 20, P30 Pro smartphones with software of versions earlier than ELLE-AL00B 9.1.0.193(C00E190R1P21), versions earlier than Hima-AL00B 9.1.0.135(C00E200R2P1), versions earlier than VOGUE-AL00A 9.1.0.193(C00E190R1P12) have a buffer overflow vulnerability on several , the system does not properly validate certain length parameter which an application transports to kernel. An attacker tricks the user to install a malicious application, successful exploit could cause malicious code execution.

P30, P30 Pro, Mate 20 smartphones with software of versions earlier than ELLE-AL00B 9.1.0.193(C00E190R2P1), versions earlier than VOGUE-AL00A 9.1.0.193(C00E190R2P1), versions earlier than Hima-AL00B 9.1.0.135(C00E133R2P1) and HiSuite with versions earlier than HiSuite 9.1.0.305 have a version downgrade vulnerability. The device and HiSuite software do not validate the upgrade package sufficiently, so that the system of smartphone can be downgraded to an older version.

P30, P30 Pro, Mate 20 smartphones with software of versions earlier than ELLE-AL00B 9.1.0.193(C00E190R2P1), versions earlier than VOGUE-AL00A 9.1.0.193(C00E190R2P1), versions earlier than Hima-AL00B 9.1.0.135(C00E133R2P1) and HiSuite with versions earlier than HiSuite 9.1.0.305 have a version downgrade vulnerability. The device and HiSuite software do not validate the upgrade package sufficiently, so that the system of smartphone can be downgraded to an older version.

P30 smart phones with versions earlier than ELLE-AL00B 9.1.0.193(C00E190R2P1) have an integer overflow vulnerability due to insufficient check on specific parameters. An attacker tricks the user into installing a malicious application, obtains the root permission and constructs specific parameters to the camera program to exploit this vulnerability. Successful exploit could cause the program to break down or allow for arbitrary code execution.

P30 smart phones with versions earlier than ELLE-AL00B 9.1.0.193(C00E190R2P1) have an integer overflow vulnerability due to insufficient check on specific parameters. An attacker tricks the user into installing a malicious application, obtains the root permission and constructs specific parameters to the camera program to exploit this vulnerability. Successful exploit could cause the program to break down or allow for arbitrary code execution.

P30 smartphones with versions earlier than ELLE-AL00B 9.1.0.186(C00E180R2P1) have an improper authorization vulnerability. The software incorrectly performs an authorization check when a user attempts to perform certain action. Successful exploit could allow the attacker to update a crafted package.

Certain detection module of P30, P30 Pro, Honor V20 smartphone whith Versions earlier than ELLE-AL00B 9.1.0.193(C00E190R1P21), Versions earlier than VOGUE-AL00A 9.1.0.193(C00E190R1P12), Versions earlier than Princeton-AL10B 9.1.0.233(C00E233R4P3) have a race condition vulnerability. The system does not lock certain function properly, when the function is called by multiple processes could cause out of bound write. An attacker tricks the user into installing a malicious application, successful exploit could cause malicious code execution.

P30 smartphones with versions earlier than ELLE-AL00B 9.1.0.193(C00E190R2P1) have an insufficient verification vulnerability. The system does not verify certain parameters sufficiently, an attacker should connect to the phone and gain high privilege to launch the attack, successful exploit could cause 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.