Suryansh Mansharamani

**Name of the Vulnerable Software and Affected Versions** iOS versions prior to 13.6 iPadOS versions prior to 13.6 macOS Catalina versions prior to 10.15.6 tvOS versions prior to 13.4.8 watchOS versions prior to 6.2.8 **Description** An issue existed in the handling of iMessage tapbacks, which was resolved with additional verification. A user that is removed from an iMessage group could rejoin the group. **Recommendations** For iOS versions prior to 13.6, update to iOS 13.6 or later. For iPadOS versions prior to 13.6, update to iPadOS 13.6 or later. For macOS Catalina versions prior to 10.15.6, update to macOS Catalina 10.15.6 or later. For tvOS versions prior to 13.4.8, update to tvOS 13.4.8 or later. For watchOS versions prior to 6.2.8, update to watchOS 6.2.8 or later.

**Name of the Vulnerable Software and Affected Versions** iOS versions prior to 13.5 iPadOS versions prior to 13.5 **Description** This issue allows users removed from an iMessage conversation to potentially alter state. The estimated number of potentially affected devices worldwide is not specified. **Recommendations** For iOS versions prior to 13.5, update to iOS 13.5 or later. For iPadOS versions prior to 13.5, update to iPadOS 13.5 or later.