Apple iOS, iPadOS, macOS, tvOS, and watchOS contain a time-of-check/time-of-use (TOCTOU) memory corruption vulnerability that allows an attacker with read and write capabilities to bypass Pointer Authentication.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CWE-367
https://support.apple.com/en-us/HT213530, https://support.apple.com/en-us/HT213532, https://support.apple.com/en-us/HT213535, https://support.apple.com/en-us/HT213536