What is CVE-2016-6855?

CVE-2016-6855 is a high-severity vulnerability in GNOME Eye Of, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2016-09-07.

How severe is CVE-2016-6855?

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

Is CVE-2016-6855 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in GNOME Eye Of

CVE-2016-6855

Eye of GNOME (aka eog) 3.16.5, 3.17.x, 3.18.x before 3.18.3, 3.19.x, and 3.20.x before 3.20.4, when used with glib before 2.44.1, allow remote attackers to cause a denial of service (out-of-bounds write and crash) via vectors involving passing invalid UTF-8 to GMarkup.

Vulnerability class: Buffer Overflow

Published 2016-09-07 · 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: 0.184 (97.2th percentile), scored 2026-10-20.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.164 · newest: 0.184 · change: +0.020

Affected products

GNOME Eye Of — versions 3.16.5, 3.17.1, 3.17.2
GNOME Glib — versions 2.44.0
Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
Fedoraproject Fedora — versions 23, 24
openSUSE Leap — versions 42.1
openSUSE — versions 13.2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

git.gnome.org/browse/eog/plain/NEWS (Release Notes)
git.gnome.org/browse/eog/commit/ (Patch, Issue Tracking)
www.exploit-db.com/exploits/40291/ (exploit)
git.gnome.org/browse/eog/plain/NEWS (Release Notes)
www.securityfocus.com/bid/92616 (VDB Entry, Third Party Advisory, vdb-entry)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
www.ubuntu.com/usn/USN-3069-1 (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-updates/2016-09/msg00021.html (vendor-advisory, Third Party Advisory)
bugzilla.gnome.org/show_bug.cgi (Issue Tracking)
packetstormsecurity.com/files/138486/Gnome-Eye-Of-Gnome-3.10.2-Out-Of-Bounds-Wr… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2016-6855?: CVE-2016-6855 is a high-severity vulnerability in GNOME Eye Of, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2016-09-07.
How severe is CVE-2016-6855?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2016-6855 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.