CVE-2009-1686: Apple Safari

High severity, CVSS 9.3. EPSS: 7.5% chance of exploitation in the next 30 days.

WebKit in Apple Safari before 4.0, iPhone OS 1.0 through 2.2.1, and iPhone OS for iPod touch 1.1 through 2.2.1 does not properly handle constant (aka const) declarations in a type-conversion operation during JavaScript exception handling, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

Affected products

• Apple Safari: up to and including 4.0_beta; version 0.8 only; version 0.9 only; version 1.0 only; version 1.0.3 only; version 1.1 only; …

Published 2009-06-10. Last modified 2026-06-16.