CVE-2010-2191: PHP

Medium severity, CVSS 6.4. EPSS: 2.4% chance of exploitation in the next 30 days.

The (1) parse_str, (2) preg_match, (3) unpack, and (4) pack functions; the (5) ZEND_FETCH_RW, (6) ZEND_CONCAT, and (7) ZEND_ASSIGN_CONCAT opcodes; and the (8) ArrayObject::uasort method in PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 allow context-dependent attackers to obtain sensitive information (memory contents) or trigger memory corruption by causing a userspace interruption of an internal function or handler. NOTE: vectors 2 through 4 are related to the call time pass by reference feature.

Affected products

• PHP PHP: version 5.2.0 only; version 5.2.1 only; version 5.2.2 only; version 5.2.3 only; version 5.2.4 only; version 5.2.5 only; …

Published 2010-06-08. Last modified 2026-06-16.