A use after free issue was addressed with improved memory management. This issue is fixed in visionOS 2.3, iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3, watchOS 11.3, tvOS 18.3. A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 17.2.
https://www.securityweek.com/apple-patches-recent-zero-days-in-older-iphones/
https://thehackernews.com/2025/04/apple-backports-critical-fixes-for-3.html
https://www.darkreading.com/mobile-security/apple-drops-another-webkit-zero-day-bug
https://thehackernews.com/2025/03/apple-releases-patch-for-webkit-zero.html
https://thehackernews.com/2025/02/apple-patches-actively-exploited-ios.html
https://www.securityweek.com/apple-patches-first-exploited-ios-zero-day-of-2025/
https://thehackernews.com/2025/01/apple-patches-actively-exploited-zero.html
https://support.apple.com/en-us/122073
https://support.apple.com/en-us/122072
https://support.apple.com/en-us/122071