This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2 Security Update 2021-001 Catalina Security Update 2021-001 Mojave macOS Big Sur 11.1 Security Update 2020-001 Catalina Security Update 2020-007 Mojave iOS 14.3 and iPadOS 14.3 tvOS 14.3. Processing a maliciously crafted file may lead to heap corruption.