CVE-2021-30791: Apple iPadOS

Medium severity, CVSS 5.5. 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 14.7, macOS Big Sur 11.5. Processing a maliciously crafted file may disclose user information.

Affected products

• Apple iPadOS: before 14.7 (fixed in 14.7)
• Apple iPhone OS: before 14.7 (fixed in 14.7)
• Apple Mac OS X: from 10.14.0, before 10.14.6 (fixed in 10.14.6); from 10.15, before 10.15.7 (fixed in 10.15.7); version 10.14.6 only; version 10.15.7 only
• Apple macOS: before 11.5 (fixed in 11.5)

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