CVE-2007-1286: PHP

Medium severity, CVSS 6.8. EPSS: 40.9% chance of exploitation in the next 30 days.

Integer overflow in PHP 4.4.4 and earlier allows remote context-dependent attackers to execute arbitrary code via a long string to the unserialize function, which triggers the overflow in the ZVAL reference counter.

Affected products

• PHP PHP: up to and including 4.4.4

Published 2007-03-06. Last modified 2026-06-16.