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Fencer Intel
medium 5.5

CVE-2016-9556 json

The IsPixelGray function in MagickCore/pixel-accessor.h in ImageMagick 7.0.3-8 allows remote attackers to cause a denial of service (out-of…

published 2017-03-23 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10362

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

The IsPixelGray function in MagickCore/pixel-accessor.h in ImageMagick 7.0.3-8 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted image file.

Patch / fix

  • imagemagick Debian 14, Debian 13, Debian 12 8:6.9.6.5+dfsg-1

debian advisories DEBIAN-CVE-2016-9556

  • imagemagick Ubuntu 14.04 LTS 8:6.7.7.10-6ubuntu3.3
  • imagemagick Ubuntu 16.04 LTS 8:6.8.9.9-7ubuntu5.3

ubuntu advisories UBUNTU-CVE-2016-9556

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • GraphicsMagick Studio Onsite 1.3, SLE Software Development Kit 11 SP4 1.2.5-4.59.1
  • ImageMagick SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +8 more 6.8.8.1-54.1
  • ImageMagick SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 6.4.3.6-7.60.1

suse advisories SUSE-SU-2017:0305-1SUSE-SU-2016:3258-1SUSE-SU-2016:3256-1

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-2016-9556 updated cvss 3.3

ImageMagick: Heap-buffer overflow in IsPixelGray in pixel-accessor.h

  • Red Hat Enterprise Linux 5 ImageMagick
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl
    affected: no fix available
  • Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat OpenShift Enterprise 2 ImageMagick
    affected: no fix planned “Will not fix”

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

2.27% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

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.