HUAWEI Mate 30 Pro with versions earlier than 10.1.0.150(C00E136R5P3) have is an improper authentication vulnerability. The device does not sufficiently validate certain credential of user's face, an attacker could craft the credential of the user, successful exploit could allow the attacker to pass the authentication with the crafted credential.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.