What is CVE-2016-3993?

CVE-2016-3993 is a high-severity vulnerability in Enlightenment Imlib2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2016-05-13.

How severe is CVE-2016-3993?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Enlightenment Imlib2

CVE-2016-3993

Off-by-one error in the __imlib_MergeUpdate function in lib/updates.c in imlib2 before 1.4.9 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted coordinates.

Vulnerability class: Buffer Overflow

Published 2016-05-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Enlightenment Imlib2
Debian Linux — versions 7.0, 8.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

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

Frequently asked questions

What is CVE-2016-3993?: CVE-2016-3993 is a high-severity vulnerability in Enlightenment Imlib2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2016-05-13.
How severe is CVE-2016-3993?: High severity. CVSS v3 base score is 7.5 out of 10.