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CVE-2014-3515

32
FAUCET Score

CVE-2014-3515 is a critical vulnerability in the SPL component of PHP versions before 5.4.30 and 5.5.x before 5.5.14, affecting Debian Linux and PHP installations. It allows remote attackers to execute arbitrary code due to type confusion during unserialization, specifically impacting ArrayObject and SPLObjectStorage. With a CVSS score of 7.5 (High) and a FAUCET Risk Score of 97/100, this vulnerability poses a significant risk, enabling full compromise of confidentiality, integrity, and availability with low attack complexity and no authentication required. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered community attention and media coverage, indicating its potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.3.29CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 5.4.0, < 5.4.30CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 5.5.0, < 5.5.14CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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
30.13%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3013 is in the 97th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (13)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php53-0:5.3.3-23.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php-0:5.3.3-27.el6_5.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php-0:5.4.16-23.el7_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6Fixed in: php54-php-0:5.4.16-22.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6Fixed in: php55-php-0:5.5.6-13.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUSFixed in: php54-php-0:5.4.16-22.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUSFixed in: php55-php-0:5.5.6-13.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUSFixed in: php54-php-0:5.4.16-22.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.5 EUSFixed in: php55-php-0:5.5.6-13.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUSFixed in: php54-php-0:5.4.16-22.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.6 EUSFixed in: php55-php-0:5.5.6-13.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 7Fixed in: php54-php-0:5.4.16-22.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 7Fixed in: php55-php-0:5.5.6-13.el7
View patch

Vendor Advisories (1)

redhatCVE-2014-3515Low

php: unserialize() SPL ArrayObject / SPLObjectStorage type confusion flaw

Jul 9, 2014

References

git.php.net
lists.opensuse.org / opensuse-updates/2014-09/msg00046.html
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2014-1765.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2014-1766.html
Third Party Advisory
bugs.php.net / bug.php
PatchVendor Advisory
secunia.com / advisories/59794
Third Party Advisory
secunia.com / advisories/59831
Third Party Advisory
secunia.com / advisories/60998
Third Party Advisory
support.apple.com / kb/HT6443
Third Party Advisory
www-01.ibm.com / support/docview.wss
Third Party Advisory
debian.org / security/2014/dsa-2974
Third Party Advisory
oracle.com / technetwork/topics/security/bulletinjan2015-2370101.html
Third Party Advisory
php.net / ChangeLog-5.php
Vendor Advisory
securityfocus.com / bid/68237
Third Party AdvisoryVDB Entry