medium 6.8

CVE-2026-30937 json

ImageMagick has a heap buffer overflow in WriteXWDImage due to CARD32 arithmetic overflow in bytes_per_line calculation

published 2026-03-09 8 mo ago modified 2026-07-30 3 mo ago also EUVD-2026-10402 , GHSA-qpg4-j99f-8xcg , JLSEC-2026-987

cvss: 6.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a 32-bit unsigned integer overflow in the XWD (X Windows) encoder can cause an undersized heap buffer allocation. When writing a extremely large image an out of bounds heap write can occur. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

Patch / fix

fixed in 21 distros 5

nuget Magick.NET-Q16-AnyCPU 14.10.4
nuget Magick.NET-Q16-HDRI-AnyCPU 14.10.4
nuget Magick.NET-Q16-HDRI-OpenMP-arm64 14.10.4
nuget Magick.NET-Q16-HDRI-arm64 14.10.4
nuget Magick.NET-Q16-HDRI-x64 14.10.4
nuget Magick.NET-Q16-HDRI-x86 14.10.4
nuget Magick.NET-Q16-OpenMP-arm64 14.10.4
nuget Magick.NET-Q16-OpenMP-x64 14.10.4
nuget Magick.NET-Q16-OpenMP-x86 14.10.4
nuget Magick.NET-Q16-arm64 14.10.4
nuget Magick.NET-Q16-x64 14.10.4
nuget Magick.NET-Q16-x86 14.10.4
nuget Magick.NET-Q16-HDRI-OpenMP-x64 14.10.4
nuget Magick.NET-Q8-AnyCPU 14.10.4
nuget Magick.NET-Q8-OpenMP-arm64 14.10.4
nuget Magick.NET-Q8-OpenMP-x64 14.10.4
nuget Magick.NET-Q8-arm64 14.10.4
nuget Magick.NET-Q8-x64 14.10.4
nuget Magick.NET-Q8-x86 14.10.4
julia ImageMagick_jll 7.1.2023+0
imagemagick imagemagick 6.9.13-41, 7.1.2-16

debian ubuntu suse opensuse alpine

imagemagick Debian 12 8:6.9.11.60+dfsg-1.6+deb12u8
imagemagick Debian 13 8:7.1.1.43+dfsg1-1+deb13u7
imagemagick Debian 14 8:7.1.2.16+dfsg1-1

debian advisories DEBIAN-CVE-2026-30937

imagemagick Ubuntu Pro 14.04 LTS 8:6.7.7.10-6ubuntu3.13+esm24
imagemagick Ubuntu Pro 16.04 LTS 8:6.8.9.9-7ubuntu5.16+esm23
imagemagick Ubuntu Pro 18.04 LTS 8:6.9.7.4+dfsg-16ubuntu6.15+esm15
imagemagick Ubuntu Pro 20.04 LTS 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm13
imagemagick Ubuntu Pro 22.04 LTS 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm13
imagemagick Ubuntu Pro 24.04 LTS 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm12

ubuntu advisories UBUNTU-CVE-2026-30937

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

ImageMagick SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 7.1.0.9-150400.6.75.1
ImageMagick SLES for SAP 15 SP6, SLES 15 SP6-LTSS, openSUSE Leap 15.6 7.1.1.21-150600.3.50.1
ImageMagick SLE Module for Development Tools 15 SP7, SLE Module for Desktop Applications 15 SP7 7.1.1.43-150700.3.42.1
ImageMagick SLES for SAP applications 16.0, SLES 16.0 7.1.2.0-160000.7.1
ImageMagick SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 6.8.8.1-71.236.1

suse advisories SUSE-SU-2026:1497-1 SUSE-SU-2026:1203-1 SUSE-SU-2026:1202-1 SUSE-SU-2026:1201-1 SUSE-SU-2026:20917-1

ImageMagick openSUSE Leap 16.0 7.1.2.0-160000.7.1
ImageMagick openSUSE Tumbleweed 7.1.2.17-1.1

opensuse advisories openSUSE-SU-2026:20405-1 openSUSE-SU-2026:10386-1

imagemagick Alpine 3.24, Alpine 3.23 7.1.2.17-r0

alpine advisories ALPINE-CVE-2026-30937

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2026-30937 updated 2026-11-07 cvss 6.8

ImageMagick: ImageMagick: Denial of Service via integer overflow in XWD encoder

Red Hat Enterprise Linux 6 ImageMagick, ImageMagick-c++, ImageMagick-perl Red Hat Enterprise Linux 7 ImageMagick, ImageMagick-c++, ImageMagick-perl
affected: workaround, no fix planned “Out of support scope”

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

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 8 mo ago (2026-03-10)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
GitHub	3.1	6.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD	3.1	6.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
OSV	3.1	6.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Affected packages

ecosystem	package	affected	fixed in
nuget	Magick.NET-Q16-AnyCPU	<14.10.4	14.10.4
nuget	Magick.NET-Q16-HDRI-AnyCPU	<14.10.4	14.10.4
nuget	Magick.NET-Q16-HDRI-OpenMP-arm64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-HDRI-arm64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-HDRI-x64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-HDRI-x86	<14.10.4	14.10.4
nuget	Magick.NET-Q16-OpenMP-arm64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-OpenMP-x64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-OpenMP-x86	<14.10.4	14.10.4
nuget	Magick.NET-Q16-arm64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-x64	<14.10.4	14.10.4
nuget	Magick.NET-Q16-x86	<14.10.4	14.10.4
nuget	Magick.NET-Q16-HDRI-OpenMP-x64	<14.10.4	14.10.4
nuget	Magick.NET-Q8-AnyCPU	<14.10.4	14.10.4
nuget	Magick.NET-Q8-OpenMP-arm64	<14.10.4	14.10.4
nuget	Magick.NET-Q8-OpenMP-x64	<14.10.4	14.10.4
nuget	Magick.NET-Q8-arm64	<14.10.4	14.10.4
nuget	Magick.NET-Q8-x64	<14.10.4	14.10.4
nuget	Magick.NET-Q8-x86	<14.10.4	14.10.4
julia	ImageMagick_jll	<7.1.2023+0	7.1.2023+0

Affected products

ImageMagick ImageMagick

Classification

Weakness

CWE-122 Heap-based Buffer Overflow
CWE-190 Integer Overflow or Wraparound

References

github.com /ImageMagick/ImageMagick/security/advisories/GHSA-qpg4-j99f-8xcg
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2026-30937
advisory, web
github.com /ImageMagick/ImageMagick
package
github.com /advisories/GHSA-qpg4-j99f-8xcg
web

Sources

Fencer Vulns 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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary