The IsPixelGray function in MagickCore/pixel-accessor.h in ImageMagick 7.0.3-8 allows…
Priority LOW 29CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
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.
Why it matters now
EPSS 0.02266 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:7.0.3-8:*:*:*:*:*:*:* | 7.0.3-8 | Vulnerable | ImageMagick |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:opensuse_project:leap:42.1:*:*:*:*:*:*:* | 42.1 | Vulnerable | Opensuse Project |
- cpe:2.3:a:imagemagick:imagemagick:7.0.3-8:*:*:*:*:*:*:* Versions 7.0.3-8 Vulnerable ·ImageMagick
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:opensuse_project:leap:42.1:*:*:*:*:*:*:* Versions 42.1 Vulnerable ·Opensuse Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Enterprise 2 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9556
- 2026-10-03 Alias added: GHSA-3w2x-9vcq-46w8
References
Advisory 7
- https://blogs.gentoo.org/ago/2016/11/19/imagemagick-heap-based-buffer-overflow-in-ispixelgray-pixel-accessor-h
- openSUSE-SU-2016:3024
- [oss-security] 20161122 Re: imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h)
- [oss-security] 20161202 Re: Re: imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556)
- [oss-security] 20161201 imagemagick: heap-based buffer overflow in IsPixelGray (pixel-accessor.h) (Incomplete fix for CVE-2016-9556)
- https://bugzilla.redhat.com/show_bug.cgi?id=1398198
- DSA-3726
Sources
- CVE-2016-9556 · CVE Program
- CVE-2016-9556 · NVD
- FIRST EPSS
- GHSA-3w2x-9vcq-46w8 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9556 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences