CVE-2021-1803: Apple macOS

Low severity, CVSS 3.3. EPSS: 0.6% chance of exploitation in the next 30 days.

The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.0.1. A local application may be able to enumerate the user's iCloud documents.

Affected products

• Apple macOS: before 11.0.1 (fixed in 11.0.1)

Published 2021-04-02. Last modified 2026-06-17.