CVE-2023-42856: Apple macOS

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The issue was addressed with improved memory handling. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. Processing a file may lead to unexpected app termination or arbitrary code execution.

Affected products

• Apple macOS: from 12.0, before 12.7.1 (fixed in 12.7.1); from 13.0, before 13.6.1 (fixed in 13.6.1); from 14.0, before 14.1 (fixed in 14.1)

Published 2023-10-25. Last modified 2026-06-17.