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-2016-6207

19
FAUCET Score

CVE-2016-6207 is an integer overflow vulnerability in the GD Graphics Library (libgd) before version 2.2.3, specifically within the _gdContributionsAlloc function. This flaw allows remote attackers to trigger a denial of service through out-of-bounds memory writes or excessive memory consumption, impacting products like Debian, libgd, OpenSUSE, and PHP. With a CVSS score of 6.5 (Medium), the vulnerability is network-exploitable with low attack complexity, requiring user interaction, and primarily leads to high availability impact. While there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB) is unavailable, and community discussion is minimal, with only one mention in a broader context of SAP vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.2.2CPE matchmatch criteria
cpe:2.3:a:libgd:libgd:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
42.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
>= 5.5.0, < 5.5.38CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 5.6.0, < 5.6.24CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.26%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0626 is in the 97th percentile among its peer group of 26,220 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 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 (16)

redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-php56-0:2.3-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-php56-php-0:5.6.25-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-php56-php-pear-1:1.9.5-4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-php56-0:2.3-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-php56-php-0:5.6.25-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-php56-php-pear-1:1.9.5-4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php56-0:2.3-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php56-php-0:5.6.25-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php56-php-pear-1:1.9.5-4.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-php56-0:2.3-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-php56-php-0:5.6.25-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUSFixed in: rh-php56-php-pear-1:1.9.5-4.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-php56-0:2.3-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-php56-php-0:5.6.25-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-php56-php-pear-1:1.9.5-4.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: php55-php

Vendor Advisories (1)

redhatCVE-2016-6207Moderate

php,gd: Integer overflow error within _gdContributionsAlloc()

Jul 7, 2016

References

lists.opensuse.org / opensuse-updates/2016-08/msg00086.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2016-09/msg00078.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/138174/LibGD-2.2.2-Integer-Overflow-Denial-Of-Service.html
Third Party AdvisoryVDB Entry
rhn.redhat.com / errata/RHSA-2016-2750.html
Third Party Advisory
bugs.php.net / bug.php
Issue TrackingVendor Advisory
libgd.github.io / release-2.2.3.html
Vendor Advisory
secunia.com / secunia_research/2016-9
Third Party AdvisoryVDB Entry
security.gentoo.org / glsa/201612-09
Third Party Advisory
debian.org / security/2016/dsa-3630
Third Party Advisory
securityfocus.com / archive/1/539100/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / bid/92080
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036535
PatchThird Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3060-1
Mailing ListThird Party Advisory