CVE-2023-40455: Apple macOS

Critical severity, CVSS 10.0. EPSS: 1.3% chance of exploitation in the next 30 days.

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sonoma 14. A sandboxed process may be able to circumvent sandbox restrictions.

Affected products

• Apple macOS: before 14.0 (fixed in 14.0)

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