CVE-2009-4186: Apple Safari

High severity, CVSS 9.3. EPSS: 6.5% chance of exploitation in the next 30 days.

Stack consumption vulnerability in Apple Safari 4.0.3 on Windows allows remote attackers to cause a denial of service (application crash) via a long URI value (aka url) in the Cascading Style Sheets (CSS) background property.

Affected products

• Apple Safari: version 4.0.3 only

Published 2009-12-03. Last modified 2026-06-16.