CVE-2021-30728

Name of the Vulnerable Software and Affected Versions macOS versions prior to Big Sur 11.4 Security Update versions prior to 2021-003 Catalina Security Update versions prior to 2021-004 Mojave

Description An out-of-bounds write issue was addressed with improved bounds checking. A malicious application may be able to execute arbitrary code with kernel privileges.

Recommendations For macOS versions prior to Big Sur 11.4, update to macOS Big Sur 11.4 or later. For Security Update versions prior to 2021-003 Catalina, apply Security Update 2021-003 Catalina or later. For Security Update versions prior to 2021-004 Mojave, apply Security Update 2021-004 Mojave or later.