CVE-2016-4738: Apple iPhone OS

High severity, CVSS 8.8. EPSS: 4.1% chance of exploitation in the next 30 days.

libxslt in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

Affected products

• Apple iPhone OS: before 10.0 (fixed in 10.0)
• Apple Mac OS X: before 10.12.0 (fixed in 10.12.0)
• Apple tvOS: before 10.0 (fixed in 10.0)
• Apple watchOS: before 3.0 (fixed in 3.0)
• Debian Debian Linux: version 8.0 only; version 9.0 only

Published 2016-09-25. Last modified 2026-06-17.