The WriteOnePNGImage function in coders/png.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a den…

published 2017-07-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3138

cvss: 6.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits: 0; none known

The WriteOnePNGImage function in coders/png.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file.

Patch / fix

links 1

github.com/ImageMagick/ImageMagick@816ecab commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-11522 updated 2026-11-07 cvss 3.3

ImageMagick: Null-Pointer dereference in WriteOnePNGImage function in coders/png.c

Red Hat Enterprise Linux 5 ImageMagick Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat OpenShift Enterprise 2 ImageMagick
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/ImageMagick/ImageMagick/issues/586 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-476 NULL Pointer Dereference

References

github.com /ImageMagick/ImageMagick/commit/816ecab6c532ae086ff4186b3eaf4aa7092d536f
patch, third-party-advisory
github.com /ImageMagick/ImageMagick/issues/586
exploit, third-party-advisory
bugs.debian.org /869209
third-party-advisory

Sources

CVE List CVE-2017-11522
NVD CVE-2017-11522

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary