CVE-2020-9866

Name of the Vulnerable Software and Affected Versions macOS versions prior to 10.15.6 Security Update versions prior to 2020-004 Mojave Security Update versions prior to 2020-004 High Sierra

Description A buffer overflow issue was addressed with improved bounds checking, which may result in arbitrary code execution.

Recommendations For macOS versions prior to 10.15.6, update to macOS Catalina 10.15.6. For Security Update versions prior to 2020-004 Mojave, apply Security Update 2020-004 Mojave. For Security Update versions prior to 2020-004 High Sierra, apply Security Update 2020-004 High Sierra.