CVE-2021-30853: Apple macOS

Medium severity, CVSS 5.5. EPSS: 6.9% chance of exploitation in the next 30 days.

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.

Affected products

• Apple macOS: before 11.6 (fixed in 11.6)

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