An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.7, macOS Ventura 13, iOS 16, iOS 15.7 and iPadOS 15.7, watchOS 9, macOS Monterey 12.6, tvOS 16. Processing maliciously crafted web content may lead to arbitrary code execution.
https://support.apple.com/en-us/HT213488
https://support.apple.com/en-us/HT213487
https://support.apple.com/en-us/HT213486
https://support.apple.com/en-us/HT213446
https://support.apple.com/en-us/HT213445
https://support.apple.com/en-us/HT213444
https://support.apple.com/en-us/HT213443