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CVE-2014-3622

30
FAUCET Score

CVE-2014-3622 is a critical use-after-free vulnerability in the add_post_var function of the Posthandler component in PHP 5.6.x before 5.6.1. This flaw allows remote attackers to execute arbitrary code by exploiting a third-party filter extension that improperly accesses a ksep value. With a CVSS score of 9.8, it presents a high risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness and potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.6.0, < 5.6.1CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.12%
Probability of exploitation in next 30 days
EPSS Percentile
86.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0312 is in the 78th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2014-3622Low

php: post handler potential illegal efree() vulnerability

Oct 3, 2014

References

php.net / ChangeLog-5.php
Release NotesVendor Advisory
bugs.php.net / bug.php
ExploitVendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory