CVE-2016-1864: Apple iPhone OS

Medium severity, CVSS 4.3. EPSS: 1.9% chance of exploitation in the next 30 days.

The XSS auditor in WebKit, as used in Apple iOS before 9.3 and Safari before 9.1, does not properly handle redirects in block mode, which allows remote attackers to obtain sensitive information via a crafted URL.

Affected products

• Apple iPhone OS: up to and including 9.2.1
• Apple Safari: up to and including 9.0.3

Published 2016-06-19. Last modified 2026-06-17.