Anything discovered after January 2019 remains unpatched in this version. If you see a version string like 5.6.40-1 or a system reporting 5.6.400 (5640), you are either dealing with a custom build, a typo, or—more likely—a system that has not been updated in over half a decade.
Because official support has ended, 5.6.40 is considered insecure for production use. Risks include: Every PHP Application Is Vulnerable
A use-after-free vulnerability in the phar_parse function (similar to CVE-2020-7063 ) allows unauthenticated remote attackers to execute arbitrary code by dereferencing freed pointers.
Week 5 — Automated Scanning & Patch Analysis
Week 3 — Dynamic Testing: Manual & Proxy-Based
After thorough analysis and testing, the following vulnerabilities have been verified in PHP 5.6.40:
Current PHP Versions | The Evolution & History of PHP - Zend
Anything discovered after January 2019 remains unpatched in this version. If you see a version string like 5.6.40-1 or a system reporting 5.6.400 (5640), you are either dealing with a custom build, a typo, or—more likely—a system that has not been updated in over half a decade.
Because official support has ended, 5.6.40 is considered insecure for production use. Risks include: Every PHP Application Is Vulnerable php version 5640 vulnerabilities verified
A use-after-free vulnerability in the phar_parse function (similar to CVE-2020-7063 ) allows unauthenticated remote attackers to execute arbitrary code by dereferencing freed pointers. Anything discovered after January 2019 remains unpatched in
Week 5 — Automated Scanning & Patch Analysis Risks include: Every PHP Application Is Vulnerable A
Week 3 — Dynamic Testing: Manual & Proxy-Based
After thorough analysis and testing, the following vulnerabilities have been verified in PHP 5.6.40:
Current PHP Versions | The Evolution & History of PHP - Zend