CVE-2021-31004: Apple macOS

High severity, CVSS 7.0. EPSS: 0.5% chance of exploitation in the next 30 days.

A race condition was addressed with improved locking. This issue is fixed in macOS Monterey 12.0.1, macOS Big Sur 11.5. An application may be able to gain elevated privileges.

Affected products

• Apple macOS: from 11.0, before 11.5 (fixed in 11.5); version 12.0.0 only

Published 2021-08-24. Last modified 2026-06-17.