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CVE-2016-6161

24
FAUCET Score

CVE-2016-6161 is an out-of-bounds read vulnerability in the GD Graphics Library (libgd), specifically within the gd_gif_out.c output function, affecting various Debian and openSUSE distributions. This medium-severity flaw (CVSS 6.5) can be triggered remotely by an unauthenticated attacker sending a crafted image, leading to a denial of service. While the vulnerability has a low EPSS score and no known public exploits (Metasploit, Nuclei, ExploitDB), there is no evidence of active exploitation or significant community discussion or media coverage.

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:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
2.77%
Probability of exploitation in next 30 days
EPSS Percentile
84.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0277 is in the 93rd percentile among its peer group of 26,220 CVEs.

Social Chatter

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

Vendor Patches (11)

redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: php54-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: php55-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php56-php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: gd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gd
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
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: gd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php

Vendor Advisories (1)

redhatCVE-2016-6161Moderate

gd: Global out-of-bounds read when encoding gif from malformed gd2 input

May 8, 2016

References

lists.opensuse.org / opensuse-updates/2016-08/msg00086.html
lists.opensuse.org / opensuse-updates/2016-09/msg00078.html
Third Party Advisory
github.com / libgd/libgd/issues/209
Third Party Advisory
debian.org / security/2016/dsa-3619
Third Party Advisory
openwall.com / lists/oss-security/2016/07/05/6
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/07/05/7
Mailing ListThird Party Advisory
ubuntu.com / usn/USN-3030-1