Php Version 5640 Vulnerabilities Link Official
Knowing the risks is not enough—you need a concrete, incremental migration plan.
from CVE Details shows many more critical issues (RCE, SQL injection via PDO, path traversal, etc.).
Flaws inside fetch_token , compile_string_node , and match_at functions handle lengths incorrectly during case-folding calculations.
CVE Details provides a user-friendly breakdown of vulnerabilities by version. php version 5640 vulnerabilities link
To gather the necessary information, I will perform multiple searches. I will search for "PHP 5.6.40 vulnerabilities" to get a general overview. I will also search for "PHP 5.6.40 CVE list" and "PHP 5.6.40 security advisory" to find specific vulnerability data. Additionally, I will search for "PHP 5.6 changelog" and "PHP 5.6.40 release announcement" to get official changelog information. I will also search for "PHP 5.6 end of life security" to provide context on the version's support status. search results provide a variety of sources. I will open several to gather detailed information. These include the PHP 5.6.40 release announcement, the changelog, the Debian security update (ELA-1091-1), the Tenable report, the Vulert security update, the Debian LTS alert (DLA-2188-1), the InfosecMatter page, the GitHub PHP binary bugs advisory, and the Debian LTS DLA-2160-0 page. have gathered information from various sources. The user's keyword "php version 5640 vulnerabilities link" likely refers to PHP version 5.6.40. The article should cover the vulnerabilities, links to CVE databases, changelogs, and security advisories. I will structure the article with an introduction, sections on the EOL status, critical vulnerabilities fixed in 5.6.40, post-EOL security patches, official sources of truth, and a conclusion. I will cite the sources I've opened. version string "5.6.40" marks a significant milestone in PHP's history: it is the final, officially planned release of the widely popular PHP 5.6 branch. For anyone managing a legacy system, understanding the vulnerabilities associated with this version and knowing where to find the authoritative security information is a critical part of operational security. This guide provides a comprehensive overview of the security landscape for PHP 5.6.40, including the exact links you need.
PHP 8.x is significantly faster and more memory-efficient than 5.6.
This application-level vulnerability is common in outdated applications, allowing attackers to manipulate serialized objects, leading to RCE or data corruption. Knowing the risks is not enough—you need a
Staying on 5.6.40 is often referred to as "leaving your front door unlocked".
| Security Advisory / Source | Key Patched Vulnerabilities (CVEs) | Fixed in Version (Debian 8 "Jessie") | | :--- | :--- | :--- | | Freexian ELA-1091-1 | , CVE-2024-3096 (Password hash bypass, cookie validation bypass) | 5.6.40+dfsg-0+deb8u19 | | Freexian ELA-457-1 | CVE-2019-9675 , CVE-2020-7068 , CVE-2020-7071 , CVE-2021-21702 , CVE-2021-21704 , CVE-2021-21705 (DoS, memory corruption, SSRF) | 5.6.40+dfsg-0+deb8u14 | | Debian DLA-2188-1 | CVE-2020-7064 , CVE-2020-7066 , CVE-2020-7067 (Information disclosure, out-of-bounds reads) | 5.6.40+dfsg-0+deb8u11 | | Vulert Security Update | CVE-2019-11045 , CVE-2019-11046 (EXIF module vulnerabilities, DoS, arbitrary code execution) | 5.6.40+dfsg-0+deb8u8 | | Vulert Security Update | CVE-2019-9022 , CVE-2019-9637 , CVE-2019-9638 , CVE-2019-9639 , CVE-2019-9640 , CVE-2019-9641 (EXIF module issues, data leakage) | 5.6.40+dfsg-0+deb8u2 |
PHP 5.6.40
Running a web application on outdated technology is like leaving your front door unlocked. When that technology is as foundational as PHP, the consequences can be catastrophic. , released on January 10, 2019, was the final release of the 5.6 branch. As of June 2026, this version is ancient, unsupported, and rife with severe security vulnerabilities.
Supported versions (8.2, 8.3, 8.4, 8.5) receive regular updates for new vulnerabilities.
Virtual patching is a temporary band-aid. The only permanent solution to PHP 5.6.40 vulnerabilities is migrating to a supported version, such as PHP 8.2 or PHP 8.3. I will also search for "PHP 5
