CVE-2011-3453: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 3.8% chance of exploitation in the next 30 days.

Integer overflow in libresolv in Apple Mac OS X before 10.7.3 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via crafted DNS data.

Affected products

• Apple Mac OS X: up to and including 10.7.2; version 10.7.0 only; version 10.7.1 only
• Apple Mac OS X Server: up to and including 10.7.2; version 10.7.0 only; version 10.7.1 only

Published 2012-02-02. Last modified 2026-06-16.