CVE-2010-0055: Apple Mac OS X

High severity, CVSS 10.0. EPSS: 2% chance of exploitation in the next 30 days.

xar in Apple Mac OS X 10.5.8 does not properly validate package signatures, which allows attackers to have an unspecified impact via a modified package.

Affected products

• Apple Mac OS X: version 10.5.8 only
• Apple Mac OS X Server: version 10.5.8 only

Published 2010-03-30. Last modified 2026-06-16.