What is CVE-2017-18211?

CVE-2017-18211 is a critical-severity vulnerability in Imagemagick, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2018-03-01.

How severe is CVE-2017-18211?

Critical severity. CVSS v3 base score is 9.8 out of 10.

NULL pointer dereference in Imagemagick

CVE-2017-18211

In ImageMagick 7.0.7, a NULL pointer dereference vulnerability was found in the function saveBinaryCLProgram in magick/opencl.c because a program-lookup result is not checked, related to CacheOpenCLKernel.

Published 2018-03-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.038 (89.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.039 · newest: 0.038 · change: -0.001

Affected products

Imagemagick — versions 7.0.7-0, 7.0.7-1, 7.0.7-2
Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/ImageMagick/ImageMagick/issues/792 (Patch, Third Party Advisory)
www.securityfocus.com/bid/103220 (VDB Entry, Third Party Advisory, vdb-entry)
usn.ubuntu.com/3681-1/ (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2020/09/msg00007.html (mailing-list)

Frequently asked questions

What is CVE-2017-18211?: CVE-2017-18211 is a critical-severity vulnerability in Imagemagick, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2018-03-01.
How severe is CVE-2017-18211?: Critical severity. CVSS v3 base score is 9.8 out of 10.