CVE-2021-1853: Apple macOS

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3. A local attacker may be able to elevate their privileges.

Affected products

• Apple macOS: from 11.0, before 11.3 (fixed in 11.3)

Published 2021-09-08. Last modified 2026-06-17.