CVE-2021-30826: Apple iPadOS

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A logic issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15. In certain situations, the baseband would fail to enable integrity and ciphering protection.

Affected products

• Apple iPadOS: before 15.0 (fixed in 15.0)
• Apple iPhone OS: before 15.0 (fixed in 15.0)

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