CVE-2025-31204 is a high-severity memory corruption vulnerability caused by improper memory handling when processing maliciously crafted web content. It affects multiple Apple operating systems and Safari. The issue has been addressed with improved memory handling in watchOS 11.5, tvOS 18.5, iOS 18.5, iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, and Safari 18.5.