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CVE-2016-3981

21
FAUCET Score

CVE-2016-3981 describes a heap-based buffer overflow in the bmp_read_rows function of OptiPNG versions prior to 0.7.6, affecting various distributions of Debian and Ubuntu Linux. This vulnerability, with a CVSS score of 7.8 (High), can be triggered by a remote attacker through a crafted image file, potentially leading to a denial of service, out-of-bounds memory access, or arbitrary code execution. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.7.5CPE matchmatch criteria
cpe:2.3:a:optipng_project:optipng:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.43%
Probability of exploitation in next 30 days
EPSS Percentile
90.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0443 is in the 91st percentile among its peer group of 11,616 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: optipng

Vendor Advisories (1)

redhatCVE-2016-3981Moderate

optipng: heap buffer overflow in the bmp_read_rows function

Apr 5, 2016

References

bugs.fi / media/afl/optipng/1
Exploit
lists.opensuse.org / opensuse-updates/2016-04/msg00061.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2016-04/msg00065.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201608-01
sourceforge.net / p/optipng/bugs/56
Issue TrackingPatchThird Party Advisory
debian.org / security/2016/dsa-3546
Third Party Advisory
ubuntu.com / usn/USN-2951-1
Third Party Advisory