CVE-2020-9868: Apple iPadOS

Critical severity, CVSS 9.1. EPSS: 1% chance of exploitation in the next 30 days.

A certificate validation issue existed when processing administrator added certificates. This issue was addressed with improved certificate validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. An attacker may have been able to impersonate a trusted website using shared key material for an administrator added certificate.

Affected products

• Apple iPadOS: before 13.6 (fixed in 13.6)
• Apple iPhone OS: before 13.6 (fixed in 13.6)
• Apple Mac OS X: before 10.15.6 (fixed in 10.15.6)
• Apple tvOS: before 13.4.8 (fixed in 13.4.8)
• Apple watchOS: before 6.2.8 (fixed in 6.2.8)

Published 2020-10-22. Last modified 2026-06-17.