CVE-2014-3622

Exp

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.

Published: 2020-02-19 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3622 is rated High Exploit Risk (85.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.12%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.17% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-3622

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-3622

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.95% 3.12% +1.17%
2 2025-12-28 2.34% 1.95% -0.39%
3 2025-12-27 — 2.34% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3622

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2014-3622

OS Trackers for CVE-2014-3622

vendor priority summary link
redhat low — https://access.redhat.com/security/cve/CVE-2014-3622
suse critical CVE-2014-3622 severity critical: SUSE including 465 source package names (apache2-mod_php5-5.6.28-1.1, apache2-mod_php7-7.0.14-1.4, …), 480 product×package rows across 15 product lines (SUSE Linux Enterprise Module for Legacy 15 SP4, SUSE Linux Enterprise Module for Legacy 15 SP5, … (15 product lines)): Fixed 433, Known Not Affected 47. https://www.suse.com/security/cve/CVE-2014-3622/
ubuntu medium CVE-2014-3622 medium priority: Ubuntu including 1 source packages (php5), 4 status rows across 4 suites (lucid, precise, trusty, upstream): not-affected 3, released 1. https://ubuntu.com/security/CVE-2014-3622

Affected software / configurations for CVE-2014-3622

Vendor Product Version Raw CPE
php php >= 5.6.0, < 5.6.1 cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

References for CVE-2014-3622

URL Tags
http://php.net/ChangeLog-5.php Release Notes Vendor Advisory
https://bugs.php.net/bug.php?id=68088 Exploit Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151423 Issue Tracking Patch Third Party Advisory
cvelogic Threat Intelligence