What is CVE-2018-14434?

CVE-2018-14434 is a medium-severity vulnerability in Imagemagick, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2018-07-20.

How severe is CVE-2018-14434?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Imagemagick

CVE-2018-14434

ImageMagick 7.0.8-4 has a memory leak for a colormap in WriteMPCImage in coders/mpc.c.

Published 2018-07-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.028 (85.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Imagemagick — versions 7.0.8-4
Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

usn.ubuntu.com/3785-1/ (vendor-advisory, Third Party Advisory)
github.com/ImageMagick/ImageMagick/issues/1192 (Exploit, Third Party Advisory)
usn.ubuntu.com/4034-1/ (vendor-advisory)

Frequently asked questions

What is CVE-2018-14434?: CVE-2018-14434 is a medium-severity vulnerability in Imagemagick, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2018-07-20.
How severe is CVE-2018-14434?: Medium severity. CVSS v3 base score is 6.5 out of 10.