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CVE-2016-3993

25
FAUCET Score

CVE-2016-3993 describes an off-by-one error in the imlib2 library, specifically within the __imlib_MergeUpdate function, affecting Debian and Enlightenment systems using imlib2 versions prior to 1.4.9. This vulnerability allows remote attackers to trigger a denial of service (out-of-bounds read and application crash) through crafted coordinates. Rated 7.5 HIGH on CVSS, it requires no user interaction or privileges for exploitation. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.8CPE matchmatch criteria
cpe:2.3:a:enlightenment:imlib2:*:*:*:*:*:*:*:*
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: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.92%
Probability of exploitation in next 30 days
EPSS Percentile
85.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0291 is in the 74th percentile among its peer group of 51,466 CVEs.

Social Chatter

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

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

Remediation records are not available for this CVE.

References

lists.opensuse.org / opensuse-updates/2016-05/msg00076.html
bugs.debian.org / cgi-bin/bugreport.cgi
git.enlightenment.org / legacy/imlib2.git/commit
sourceforge.net / p/enlightenment/mailman/message/35055012
debian.org / security/2016/dsa-3555