Php Version 5640 Vulnerabilities Verified -

: Multiple heap-based buffer over-read instances within regular expression processing. Triggered by malformed multibyte sequences to read sensitive memory or cause a crash. CVE-2019-9020 xmlrpc_decode function

: A heap-based buffer over-read in PHAR reading functions allows an attacker to read past actual data in memory by parsing a specially crafted filename. 2. The Legacy Trap: Why 5.6.40 is "Dangerously Stable" php version 5640 vulnerabilities verified

Older versions of PHP, including 5.6.40, are susceptible to object injection vulnerabilities. If an application fails to sanitize user-supplied input before passing it to the unserialize() Instead of processing the original variable, it executes

The PHP engine attempts to read or execute the original pointer. Instead of processing the original variable, it executes the attacker's malicious data. Impact and Severity thousands of legacy enterprise systems

Provides security patches for older packages.

PHP version 5.6.40 was released in January 2019 as the final, official security release for the PHP 5.6 branch. While it marked the end-of-life (EOL) for this version, thousands of legacy enterprise systems, shared hosting environments, and older web applications still run it today. Because it no longer receives official patches from the PHP Group, it is a prime target for threat actors.