CVE-2010-0500: Apple Mac OS X

High severity, CVSS 7.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Event Monitor in Apple Mac OS X before 10.6.3 does not properly validate hostnames of SSH clients, which allows remote attackers to cause a denial of service (arbitrary client blacklisting) via a crafted DNS PTR record, related to a "plist injection issue."

Affected products

• Apple Mac OS X: up to and including 10.6.2; version 10.5 only; version 10.5.0 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; …
• Apple Mac OS X Server: up to and including 10.6.2; version 10.5 only; version 10.5.0 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; …

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