CVE-2021-1780: Apple iPadOS

Medium severity, CVSS 4.4. EPSS: 0.3% chance of exploitation in the next 30 days.

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 14.4 and iPadOS 14.4. An attacker in a privileged position may be able to perform a denial of service attack.

Affected products

• Apple iPadOS: before 14.4 (fixed in 14.4)
• Apple iPhone OS: before 14.4 (fixed in 14.4)

Published 2021-04-02. Last modified 2026-06-17.