CVE-2023-40398: Apple iPadOS

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.6.4, macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4. A sandboxed process may be able to circumvent sandbox restrictions.

Affected products

• Apple iPadOS: before 16.4 (fixed in 16.4)
• Apple iPhone OS: before 16.4 (fixed in 16.4)
• Apple macOS: before 11.7.5 (fixed in 11.7.5); from 12.0, before 12.6.4 (fixed in 12.6.4); from 13.0, before 13.3 (fixed in 13.3)

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