CVE-2019-8774: Apple Ipad OS

Medium severity, CVSS 5.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 13.1 and iPadOS 13.1, macOS Catalina 10.15. Parsing a maliciously crafted iBooks file may lead to a persistent denial-of-service.

Affected products

• Apple Ipad OS: before 13.1 (fixed in 13.1)
• Apple iPhone OS: before 13.1 (fixed in 13.1)
• Apple Mac OS X: before 10.15 (fixed in 10.15)

Published 2020-10-27. Last modified 2026-06-17.