CVE-2024-40821: Apple macOS

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Monterey 12.7.6, macOS Sonoma 14.6, macOS Ventura 13.6.8. Third party app extensions may not receive the correct sandbox restrictions.

Affected products

• Apple macOS: from 12.0, before 12.7.6 (fixed in 12.7.6); from 13.0, before 13.6.8 (fixed in 13.6.8); from 14.0, before 14.6 (fixed in 14.6)

Published 2024-07-29. Last modified 2026-06-17.