CVE-2021-30759 - Apple iPhone OS, Apple Mac OS X and Apple Ipados
Critical 7.8
A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution.
Affected software
Apple iPhone OS
Apple Mac OS X
Apple Ipados
Apple watchOS
Apple Macos
Apple Tvos