An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 26.1 and iPadOS 26.1, tvOS 26.1, visionOS 26.1, macOS Sequoia 15.7.2. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory.
https://support.apple.com/en-us/125638
https://support.apple.com/en-us/125637