CVE-2007-0021: Apple Ichat

High severity, CVSS 7.5. EPSS: 23.1% chance of exploitation in the next 30 days.

Format string vulnerability in Apple iChat 3.1.6 allows remote attackers to cause a denial of service (null pointer dereference and application crash) and possibly execute arbitrary code via format string specifiers in an aim:// URI.

Affected products

• Apple Ichat: version 3.1.6 only

Published 2007-01-23. Last modified 2026-06-16.