CVE-2020-27943: Apple Ipad OS

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in tvOS 14.3, iOS 14.3 and iPadOS 14.3, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.2. Processing a maliciously crafted font file may lead to arbitrary code execution.

Affected products

• Apple Ipad OS: before 14.3 (fixed in 14.3)
• Apple iPhone OS: before 14.3 (fixed in 14.3)
• Apple macOS: before 11.1.0 (fixed in 11.1.0)
• Apple tvOS: before 14.3 (fixed in 14.3)
• Apple watchOS: before 7.2 (fixed in 7.2)

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