Improper Input Validation
A logic issue existed with the display of notification previews. This issue was addressed with improved validation. This issue is fixed in iOS 13. Notification previews may show on Bluetooth accessories even when previews are disabled.
CWE-20 - Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.