Php Version 5640 Vulnerabilities Link Jun 2026
Take advantage of better error handling, typed properties, and modern syntax.
https://www.php.net/eol.php
PHP 5.6.40 Attack Surface ├── GD Graphics Library ───> CVE-2019-6977 (Heap-Based OOB Write) ├── MBSTRING Engine ───────> CVE-2019-9023 (Regular Expression Over-read) ├── PHAR Stream Wrapper ───> CVE-2019-9021 (Filename Parsing Memory Leak) └── XMLRPC Component ──────> CVE-2019-9020 / CVE-2019-9024 (Out-of-Bounds Read)
By following these guidelines, you can help mitigate the vulnerabilities in PHP 5.6.40 and keep your server and applications secure. php version 5640 vulnerabilities link
The PHAR (PHP Archive) component contains a use-after-free vulnerability during directory processing. Attackers utilizing malicious .phar files can corrupt system memory to bypass security controls.
PHP version 5.6.40 was released on January 10, 2019 , as a final security update to address several critical bugs. Official security support for the entire PHP 5.6 branch ended on December 31, 2018
Migrating to a supported version of PHP (such as PHP 8.2 or 8.3) is the only definitive fix. Take advantage of better error handling, typed properties,
PHP 5.6 is , meaning it no longer receives any security updates from the PHP team. That is not a hypothetical risk—it's a guarantee. By running any PHP 5.6 version, including 5.6.40, you are accepting that every newly discovered vulnerability will remain unpatched . And as the software ages, more bugs will be found.
: Silent doors left ajar where malicious actors could slip in unauthorized commands.
For a comprehensive list of CVEs (Common Vulnerabilities and Exposures), you can review the PHP News Archive or the National Vulnerability Database. Why 5.6.40 is No Longer Safe Attackers utilizing malicious
Because PHP 5.6.40 is end-of-life (EOL), it remains vulnerable to multiple critical issues disclosed since its final release, including: CVE-2024-4577 (Critical - CVSS 9.8):
As of 2026, running PHP 5.6.40 poses extreme risks to production environments: PHP Requirements - Knowledgebase - The Events Calendar