CVE-2021-30770: Apple iPhone OS

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, tvOS 14.7, watchOS 7.6. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations.

Affected products

• Apple iPhone OS: before 14.7 (fixed in 14.7)
• Apple tvOS: before 14.7 (fixed in 14.7)
• Apple watchOS: before 7.6 (fixed in 7.6)

Published 2021-09-08. Last modified 2026-06-17.