CVE-2016-6288: PHP

Critical severity, CVSS 9.8. EPSS: 4.9% chance of exploitation in the next 30 days.

The php_url_parse_ex function in ext/standard/url.c in PHP before 5.5.38 allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via vectors involving the smart_str data type.

Affected products

• PHP PHP: up to and including 5.5.37

Published 2016-07-25. Last modified 2026-06-17.