CVE-2021-30935: Apple Mac OS X

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

A logic issue was addressed with improved validation. This issue is fixed in Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. An application may be able to execute arbitrary code with kernel privileges.

Affected products

• Apple Mac OS X: up to and including 10.15.7; version 10.15.7 only
• Apple macOS: from 11.0, before 11.6.2 (fixed in 11.6.2); from 12.0, before 12.1 (fixed in 12.1)

Published 2021-08-24. Last modified 2026-06-17.