CVE-2011-1153: PHP

High severity, CVSS 7.5. EPSS: 6.8% chance of exploitation in the next 30 days.

Multiple format string vulnerabilities in phar_object.c in the phar extension in PHP 5.3.5 and earlier allow context-dependent attackers to obtain sensitive information from process memory, cause a denial of service (memory corruption), or possibly execute arbitrary code via format string specifiers in an argument to a class method, leading to an incorrect zend_throw_exception_ex call.

Affected products

• PHP PHP: up to and including 5.3.5; version 1.0 only; version 2.0 only; version 2.0b10 only; version 3.0 only; version 3.0.1 only; …

Published 2011-03-16. Last modified 2026-06-16.