CVE-2021-30843: Apple iPadOS

High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days.

This issue was addressed with improved checks. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing a maliciously crafted dfont file may lead to arbitrary code execution.

Affected products

• Apple iPadOS: before 14.8 (fixed in 14.8)
• Apple iPhone OS: before 14.8 (fixed in 14.8)
• Apple Mac OS X: from 10.15, up to and including 10.15.6; version 10.15.7 only
• Apple macOS: from 11.0, before 11.6 (fixed in 11.6)
• Apple tvOS: before 15.0 (fixed in 15.0)
• Apple watchOS: before 8.0 (fixed in 8.0)

Published 2021-10-19. Last modified 2026-06-17.