CVE-2012-3723: Apple Mac OS X

Medium severity, CVSS 4.6. EPSS: 0.4% chance of exploitation in the next 30 days.

Apple Mac OS X before 10.7.5 does not properly handle the bNbrPorts field of a USB hub descriptor, which allows physically proximate attackers to execute arbitrary code or cause a denial of service (memory corruption and system crash) by attaching a USB device.

Affected products

• Apple Mac OS X: up to and including 10.7.4; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …
• Apple Mac OS X Server: up to and including 10.7.4; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …

Published 2012-09-20. Last modified 2026-06-16.