CVE-2015-5821: Apple iPhone OS

Medium severity, CVSS 6.8. EPSS: 2.5% chance of exploitation in the next 30 days.

WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2015-09-16-1 and APPLE-SA-2015-09-16-3.

Affected products

• Apple iPhone OS: up to and including 8.4.1
• Apple iTunes: up to and including 12.2
• Apple Safari: up to and including 8.0.8

Published 2015-09-18. Last modified 2026-06-17.