An integer overflow was addressed through improved input validation. This issue is fixed in visionOS 2, watchOS 11, macOS Sequoia 15, iOS 18 and iPadOS 18, tvOS 18. Processing maliciously crafted web content may lead to an unexpected process crash.
https://support.apple.com/en-us/121250
https://support.apple.com/en-us/121249
https://support.apple.com/en-us/121248