What is CVE-2018-18016?

CVE-2018-18016 is a medium-severity vulnerability in Imagemagick, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2018-10-05.

How severe is CVE-2018-18016?

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

Vulnerability in Imagemagick

CVE-2018-18016

ImageMagick 7.0.7-28 has a memory leak vulnerability in WritePCXImage in coders/pcx.c.

Published 2018-10-05 · 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: 0.018 (77.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Imagemagick — versions 7.0.7-28

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

github.com/ImageMagick/ImageMagick/issues/1049 (Patch, Third Party Advisory, Issue Tracking)
usn.ubuntu.com/4034-1/ (vendor-advisory)
bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18016?: CVE-2018-18016 is a medium-severity vulnerability in Imagemagick, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2018-10-05.
How severe is CVE-2018-18016?: Medium severity. CVSS v3 base score is 6.5 out of 10.