---
title: "CVE-2014-8142: Use-after-free vulnerability… | CubePath"
description: "Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x…"
language: en
source: https://cubepath.com/security/cve/CVE-2014-8142
---

# CVE-2014-8142: Use-after-free vulnerability… | CubePath

## Description

Use-after-free vulnerability in the process\_nested\_data function in ext/standard/var\_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x before 5.6.4 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages improper handling of duplicate keys within the serialized properties of an object, a different vulnerability than CVE-2004-1019.

Official description from the CVE record, published by redhat. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2014-8142)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.55065 (55.1% probability)

Percentile

99.0%

Scores of

Nov 10, 2026

Model

v2026.06.15

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [71791](http://www.securityfocus.com/bid/71791)  (securityfocus.com) vdb-entry
- [bugzilla.redhat.com/show\_bug.cgi?id=1175718](https://bugzilla.redhat.com/show%5Fbug.cgi?id=1175718)
- [HPSBMU03409](http://marc.info/?l=bugtraq&m=144050155601375&w=2)  (marc.info) vendor-advisory
- [SUSE-SU-2015:0365](http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00029.html)  (lists.opensuse.org) vendor-advisory
- [HPSBMU03380](http://marc.info/?l=bugtraq&m=143748090628601&w=2)  (marc.info) vendor-advisory
- [oracle.com/technetwork/topics/security/linuxbulletinjan2016…](http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html)
- [git.php.net/?p=php-src.git%3Ba=commit%3Bh=630f9c33c23639de8…](http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=630f9c33c23639de85c3fd306b209b538b73b4c9)
- [SSRT102066](http://marc.info/?l=bugtraq&m=143403519711434&w=2)  (marc.info) vendor-advisory
- [php.net/ChangeLog-5.php](http://php.net/ChangeLog-5.php)
- [openSUSE-SU-2015:0325](http://lists.opensuse.org/opensuse-updates/2015-02/msg00079.html)  (lists.opensuse.org) vendor-advisory
- [DSA-3117](http://www.debian.org/security/2014/dsa-3117)  (debian.org) vendor-advisory
- [oracle.com/technetwork/topics/security/bulletinjan2015-2370…](http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html)
- [RHSA-2015:1135](http://rhn.redhat.com/errata/RHSA-2015-1135.html)  (rhn.redhat.com) vendor-advisory
- [bugs.php.net/bug.php?id=68594](https://bugs.php.net/bug.php?id=68594)
- [RHSA-2015:1053](http://rhn.redhat.com/errata/RHSA-2015-1053.html)  (rhn.redhat.com) vendor-advisory
- [GLSA-201503-03](https://security.gentoo.org/glsa/201503-03)  (security.gentoo.org) vendor-advisory
- [RHSA-2015:1066](http://rhn.redhat.com/errata/RHSA-2015-1066.html)  (rhn.redhat.com) vendor-advisory

## Timeline

1. ID reserved Oct 10, 2014
2. Record published Dec 20, 2014
3. Record last updated Aug 6, 2024

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## About CubePath

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:00 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)