What’s Vulnerable › Vulnerabilities

CVE-2014-3622

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-02-19 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in the add_post_var function in the Posthandler component in PHP 5.6.x before 5.6.1 might allow remote attackers to execute arbitrary code by leveraging a third-party filter extension that accesses a certain ksep value.

Affected products

• PHP: from 5.6.0 before 5.6.1 — fixed in 5.6.1

How to fix

Upgrade to a fixed version: PHP 5.6.1. Check the vendor advisory for mitigations.

References

• http://php.net/ChangeLog-5.php
• https://bugs.php.net/bug.php?id=68088
• https://bugzilla.redhat.com/show_bug.cgi?id=1151423
• http://php.net/ChangeLog-5.php
• https://bugs.php.net/bug.php?id=68088
• https://bugzilla.redhat.com/show_bug.cgi?id=1151423

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