A logic issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, tvOS 12.3, watchOS 5.2.1, macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3. An attacker in a privileged network position can modify driver state.