A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1 tvOS 14.0 macOS Big Sur 11.1 Security Update 2020-001 Catalina Security Update 2020-007 Mojave watchOS 7.0 iOS 14.0 and iPadOS 14.0. An application may be able to execute arbitrary code with kernel privileges.