CVE-2020-9864: Apple Mac OS X

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15.6. An application may be able to execute arbitrary code with kernel privileges.

Affected products

• Apple Mac OS X: before 10.15.6 (fixed in 10.15.6)

Published 2020-10-16. Last modified 2026-06-17.