CVE-2023-42940: Apple macOS

Medium severity, CVSS 5.7. EPSS: 0.7% chance of exploitation in the next 30 days.

A session rendering issue was addressed with improved session tracking. This issue is fixed in macOS Sonoma 14.2.1. A user who shares their screen may unintentionally share the incorrect content.

Affected products

• Apple macOS: from 14.0, before 14.2.1 (fixed in 14.2.1)

Published 2023-12-19. Last modified 2026-06-17.