CVE-2021-30991: Apple iPadOS

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

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 15.2 and iPadOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected products

• Apple iPadOS: before 15.2 (fixed in 15.2)
• Apple iPhone OS: before 15.2 (fixed in 15.2)

Published 2021-08-24. Last modified 2026-06-17.