CVE-2016-1761: Apple iPhone OS

Critical severity, CVSS 9.8. EPSS: 6.9% chance of exploitation in the next 30 days.

libxml2 in Apple iOS before 9.3, OS X before 10.11.4, and watchOS before 2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.

Affected products

• Apple iPhone OS: up to and including 9.2.1
• Apple Mac OS X: up to and including 10.11.3
• Apple watchOS: up to and including 2.1

Published 2016-03-24. Last modified 2026-06-17.