CVE-2023-40422: Apple macOS

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

The issue was addressed with improved memory handling. This issue is fixed in macOS Sonoma 14. An app 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.