CVE-2009-4024: PEAR

High severity, CVSS 10.0. EPSS: 6.1% chance of exploitation in the next 30 days.

Argument injection vulnerability in the ping function in Ping.php in the Net_Ping package before 2.4.5 for PEAR allows remote attackers to execute arbitrary shell commands via the host parameter. NOTE: this has also been reported as a shell metacharacter problem.

Affected products

• PEAR PEAR: up to and including 2.4.4; version 0.1 only; version 1.0 only; version 1.0.1 only; version 2.1 only; version 2.2 only; …

Published 2009-11-29. Last modified 2026-06-16.