CVE-2020-9977: Apple iPadOS

Medium severity, CVSS 5.5. EPSS: 0.9% chance of exploitation in the next 30 days.

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A malicious application may be able to determine a user's open tabs in Safari.

Affected products

• Apple iPadOS: before 14.2 (fixed in 14.2)
• Apple iPhone OS: before 14.2 (fixed in 14.2)
• Apple Mac OS X: before 11.0.1 (fixed in 11.0.1)

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