CVE-2014-8142

49

FAUCET Score

CVE-2014-8142 is a use-after-free vulnerability in PHP versions before 5.4.36, 5.5.20, and 5.6.4, allowing remote attackers to execute arbitrary code through crafted unserialize calls. This vulnerability has a CVSS score of 7.5, indicating high severity with network attack vector, low complexity, and potential for partial impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, its high EPSS score and FAUCET Risk Score suggest a significant likelihood of exploitation. There is no public exploit code available, but it has garnered community discussion and media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		<= 5.4.35CPE matchmatch criteria	cpe:2.3:a:php:php::::::::
		5.5.0CPE matchmatch criteria	cpe:2.3:a:php:php:5.5.0:::::::*
		5.5.0CPE matchmatch criteria	cpe:2.3:a:php:php:5.5.0:alpha1::::::
		5.5.0CPE matchmatch criteria	cpe:2.3:a:php:php:5.5.0:alpha2::::::
		5.5.0CPE matchmatch criteria	cpe:2.3:a:php:php:5.5.0:alpha3::::::

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Exploitability Score

10.0

Impact Score

6.4

CvssVersion

2.0

Exploit Intelligence

EPSS Score

53.17%

Probability of exploitation in next 30 days

EPSS Percentile

98.9%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.5317 is in the 98th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (23)

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: php-0:5.4.16-36.ael7b_1

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php55-0:2.0-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php55-php-0:5.5.21-2.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php54-0:2.0-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php54-php-0:5.4.40-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php54-php-pecl-zendopcache-0:7.0.4-3.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php55-0:2.0-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php55-php-0:5.5.21-2.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php54-0:2.0-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php54-php-0:5.4.40-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php54-php-pecl-zendopcache-0:7.0.4-3.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php55-0:2.0-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php55-php-0:5.5.21-2.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php54-0:2.0-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php54-php-0:5.4.40-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php54-php-pecl-zendopcache-0:7.0.4-3.el6

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php55-0:2.0-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php55-php-0:5.5.21-2.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php54-0:2.0-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php54-php-0:5.4.40-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php54-php-pecl-zendopcache-0:7.0.4-3.el7

redhatno patchvia redhat_api

Product: Red Hat Software CollectionsFixed in: php54-php

redhatno patchvia redhat_api

Product: Red Hat Software CollectionsFixed in: php55-php

Vendor Advisories (1)

redhatCVE-2014-8142Moderate

php: use after free vulnerability in unserialize()

References

lists.opensuse.org / opensuse-security-announce/2015-02/msg00029.html

lists.opensuse.org / opensuse-updates/2015-02/msg00079.html

php.net / ChangeLog-5.php

Vendor Advisory

rhn.redhat.com / errata/RHSA-2015-1053.html

rhn.redhat.com / errata/RHSA-2015-1066.html

rhn.redhat.com / errata/RHSA-2015-1135.html

bugs.php.net / bug.php

ExploitVendor Advisory

bugzilla.redhat.com / show_bug.cgi

security.gentoo.org / glsa/201503-03

debian.org / security/2014/dsa-3117

oracle.com / technetwork/topics/security/bulletinjan2015-2370101.html

oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html

securityfocus.com / bid/71791