Zitat von MITs Forum am 7. September 2023, 0:00 Uhr

A validation issue was addressed with improved logic. This issue is fixed in watchOS 9.6.2, iOS 16.6.1 and iPadOS 16.6.1. A maliciously crafted attachment may result in arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

References
https://support.apple.com/kb/HT213905
https://support.apple.com/kb/HT213907
http://seclists.org/fulldisclosure/2023/Sep/4
http://seclists.org/fulldisclosure/2023/Sep/5
https://support.apple.com/en-us/HT213905
https://support.apple.com/en-us/HT213907