CVE-2021-1824: Apple Mac OS X

Medium severity, CVSS 4.4. EPSS: 0.3% chance of exploitation in the next 30 days.

This issue was addressed with improved entitlements. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application with root privileges may be able to access private information.

Affected products

• Apple Mac OS X: from 10.15, up to and including 10.15.5; version 10.15.6 only; version 10.15.7 only
• Apple macOS: from 11.0, before 11.3 (fixed in 11.3)

Published 2021-09-08. Last modified 2026-06-17.