Apple recently released an important security update for operating systems iOS / iPadOS, recommended to all owners of iPhone or iPad. iOS Security Response 16.5.1(a).
This update iOS / iPadOS it doesn't bring news, it just addresses a vulnerability that Apple believes it has been actively exploited.
iOS Security Response – iOS 16.5.1 (a) / iPadOS 16.5.1 (a)

WebKit
Available for: iOS 16.5.1 / iPadOS 16.5.1
Impact: Processing web content may lead to the execution of arbitrary code. Apple is aware of a report that this issue may have been actively exploited.
Description: The issue was resolved through improved controls.
CVE-2023-37450: anonymous.
Related: What does Rapid Security Responses mean and what is it for?
The update is available for all devices iPhone and iPad with operating system iOS 16.5.
This security fix was included by Apple and in iOS 16.6 beta 5.