CVE-2023-40407: Apple macOS

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

The issue was addressed with improved bounds checks. This issue is fixed in macOS Sonoma 14. A remote attacker may be able to cause a denial-of-service.

Affected products

• Apple macOS: before 14.0 (fixed in 14.0)

Published 2023-09-27. Last modified 2026-06-17.