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Vulnerability record · CVE-2014-3622 · published 19 February 2020

CVE-2014-3622: Php use after free vulnerability

Php · Php

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.

9.8 CVSS 3.1 Critical EPSS 3.1% · top 12.6% CWE-416 · Use after free
9.8CVSS 3.1 base score, v2 6.8
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://php.net/ChangeLog-5.php Release NotesVendor Advisory
https://bugs.php.net/bug.php?id=68088 ExploitVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151423 Issue TrackingPatchThird Party Advisory
http://php.net/ChangeLog-5.php Release NotesVendor Advisory
https://bugs.php.net/bug.php?id=68088 ExploitVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151423 Issue TrackingPatchThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2014-3622), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.