CVE-2014-9427: PHP

High severity, CVSS 7.5. EPSS: 18.3% chance of exploitation in the next 30 days.

sapi/cgi/cgi_main.c in the CGI component in PHP through 5.4.36, 5.5.x through 5.5.20, and 5.6.x through 5.6.4, when mmap is used to read a .php file, does not properly consider the mapping's length during processing of an invalid file that begins with a # character and lacks a newline character, which causes an out-of-bounds read and might (1) allow remote attackers to obtain sensitive information from php-cgi process memory by leveraging the ability to upload a .php file or (2) trigger unexpected code execution if a valid PHP script is present in memory locations adjacent to the mapping.

Affected products

• PHP PHP: version 1.0 only; version 2.0 only; version 2.0b10 only; version 3.0 only; version 3.0.1 only; version 3.0.2 only; …

Published 2015-01-03. Last modified 2026-06-17.