Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2015-4024

36
FAUCET Score

CVE-2015-4024 is an algorithmic complexity vulnerability in PHP versions before 5.4.41, 5.5.25, and 5.6.9, affecting products from vendors like Apple, HP, Oracle, and Red Hat. This flaw allows remote attackers to cause a denial of service (CPU consumption) through crafted form data. The vulnerability has a CVSS score of 5.0 (medium severity) with a network attack vector, low attack complexity, and potential for partial availability impact. There is no evidence of active exploitation, no known exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
<= 10.10.4CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
<= 5.4.40CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
5.4.39CPE matchmatch criteria
cpe:2.3:a:php:php:5.4.39:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
50.13%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.5013 is in the 99th percentile among its peer group of 23,723 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (19)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php-0:5.3.3-46.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php-0:5.4.16-36.ael7b_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php55-php-0:5.5.21-4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-php56-php-0:5.6.5-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: php54-php-0:5.4.40-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php55-php-0:5.5.21-4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: rh-php56-php-0:5.6.5-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: php54-php-0:5.4.40-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php55-php-0:5.5.21-4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: rh-php56-php-0:5.6.5-7.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: php54-php-0:5.4.40-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php55-php-0:5.5.21-4.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php56-php-0:5.6.5-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: php54-php-0:5.4.40-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: php55-php-0:5.5.21-4.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-php56-php-0:5.6.5-7.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: php54-php-0:5.4.40-3.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php53

Vendor Advisories (1)

redhatCVE-2015-4024Moderate

php: multipart/form-data request parsing CPU usage DoS

May 14, 2015

References

lists.apple.com / archives/security-announce/2015/Aug/msg00001.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-May/158616.html
lists.fedoraproject.org / pipermail/package-announce/2015-May/158915.html
lists.fedoraproject.org / pipermail/package-announce/2015-May/159031.html
lists.opensuse.org / opensuse-updates/2015-06/msg00002.html
php.net / ChangeLog-5.php
Patch
rhn.redhat.com / errata/RHSA-2015-1135.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1186.html
rhn.redhat.com / errata/RHSA-2015-1187.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1218.html
rhn.redhat.com / errata/RHSA-2015-1219.html
bugs.php.net / bug.php
ExploitPatch
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
Third Party Advisory
support.apple.com / kb/HT205031
debian.org / security/2015/dsa-3280
oracle.com / technetwork/topics/security/bulletinjul2015-2511963.html
Third Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
Third Party Advisory
securityfocus.com / bid/74903
securitytracker.com / id/1032432