What is CVE-2015-3418?

CVE-2015-3418 is a high-severity vulnerability in X.org X Server, classified under Divide By Zero. CVSS score: 7.5/10. Published 2016-12-13.

How severe is CVE-2015-3418?

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

Vulnerability in X.org X Server

CVE-2015-3418

The ProcPutImage function in dix/dispatch.c in X.Org Server (aka xserver and xorg-server) before 1.16.4 allows attackers to cause a denial of service (divide-by-zero and crash) via a zero-height PutImage request.

Published 2016-12-13 · 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: 0.023 (82.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

X.org X Server

Weakness classification (CWE)

CWE-369 — Divide By Zero

References

www.securityfocus.com/bid/74328 (vdb-entry)
cgit.freedesktop.org/xorg/xserver/commit/
security.gentoo.org/glsa/201701-64 (vendor-advisory)
www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
lists.x.org/archives/xorg-announce/2015-February/002532.html (mailing-list)

Frequently asked questions

What is CVE-2015-3418?: CVE-2015-3418 is a high-severity vulnerability in X.org X Server, classified under Divide By Zero. CVSS score: 7.5/10. Published 2016-12-13.
How severe is CVE-2015-3418?: High severity. CVSS v3 base score is 7.5 out of 10.