CVE-2021-30840: Apple iPadOS

High severity, CVSS 7.8. EPSS: 1.1% chance of exploitation in the next 30 days.

This issue was addressed with improved checks. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted dfont file may lead to arbitrary code execution.

Affected products

• Apple iPadOS: before 15.0 (fixed in 15.0)
• Apple iPhone OS: before 15.0 (fixed in 15.0)
• Apple macOS: before 12.0.1 (fixed in 12.0.1)
• Apple tvOS: before 15.0 (fixed in 15.0)
• Apple watchOS: before 8.0 (fixed in 8.0)

Published 2021-10-28. Last modified 2026-06-17.