CVE-2016-4688: Apple Mac OS X

High severity, CVSS 8.8. EPSS: 2.9% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. iOS before 10.1 is affected. macOS before 10.12.1 is affected. tvOS before 10.0.1 is affected. watchOS before 3.1 is affected. watchOS before 3.1.3 is affected. The issue involves the "FontParser" component. It allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a crafted font.

Affected products

• Apple Mac OS X: before 10.12.1 (fixed in 10.12.1)
• Apple tvOS: before 10.0.1 (fixed in 10.0.1)
• Apple watchOS: before 3.1.3 (fixed in 3.1.3)

Published 2017-02-20. Last modified 2026-06-17.