CVE-2020-27904: Apple macOS

High severity, CVSS 7.8. EPSS: 3.1% chance of exploitation in the next 30 days.

A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

Affected products

• Apple macOS: before 11.0.1 (fixed in 11.0.1)

Published 2020-12-08. Last modified 2026-06-17.