Apple · Ios · CVE-2021-30943
**Name of the Vulnerable Software and Affected Versions**
iOS versions prior to 15.2
iPadOS versions prior to 15.2
watchOS versions prior to 8.3
macOS Monterey versions prior to 12.1
**Description**
An issue in the handling of group membership was resolved with improved logic, which could allow a malicious user to leave a messages group but continue to receive messages in that group.
**Recommendations**
For iOS versions prior to 15.2, update to iOS 15.2 or later.
For iPadOS versions prior to 15.2, update to iPadOS 15.2 or later.
For watchOS versions prior to 8.3, update to watchOS 8.3 or later.
For macOS Monterey versions prior to 12.1, update to macOS Monterey 12.1 or later.