and remains vulnerable to high-severity exploits discovered after its support period Critical Vulnerabilities Affecting PHP 5.6.40
PHP End-of-Life Dates: Support Timeline for Every Version (2026) php version 5640 vulnerabilities verified
PHP 5.6.40 (cli) (built: Jan 10 2019 12:00:00) php version 5640 vulnerabilities verified
PHP 5.x has a history of Object Injection vulnerabilities. While 5.6.40 patched many previous issues, it lacks the modern safeguards against deserialization attacks found in PHP 7.4 and 8.x. php version 5640 vulnerabilities verified
Migrate to a supported version (PHP 8.2 or 8.3).