CVE-2021-30786: Apple iPhone OS

High severity, CVSS 7.0. EPSS: 0.8% chance of exploitation in the next 30 days.

A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.

Affected products

• Apple iPhone OS: before 14.7 (fixed in 14.7)
• Apple macOS: from 11.0, before 11.5 (fixed in 11.5)

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