A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, tvOS 14.7, watchOS 7.6. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations.
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.