CVE-2021-30658: Apple macOS

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

This issue was addressed with improved handling of file metadata. This issue is fixed in macOS Big Sur 11.3. A malicious application may bypass Gatekeeper checks.

Affected products

• Apple macOS: from 11.0, before 11.3 (fixed in 11.3)

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