Skip to content
Fencer Vulns
medium 5.1

CVE-2026-34238 json

ImageMagick: Integer overflow in despeckle operation causes heap buffer overflow on 32-bit builds

published 2026-04-13 6 mo ago modified 2026-07-30 3 mo ago also EUVD-2026-22112 , GHSA-26qp-ffjh-2x4v , JLSEC-2026-999

cvss
5.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

Patch / fix

  • nuget Magick.NET-Q16-AnyCPU 14.12.0
  • nuget Magick.NET-Q16-HDRI-AnyCPU 14.12.0
  • nuget Magick.NET-Q16-HDRI-x86 14.12.0
  • nuget Magick.NET-Q16-x86 14.12.0
  • nuget Magick.NET-Q8-AnyCPU 14.12.0
  • nuget Magick.NET-Q8-x86 14.12.0
  • julia ImageMagick_jll 7.1.2023+0
  • imagemagick imagemagick 6.9.13-44, 7.1.2-19
  • imagemagick Debian 12 8:6.9.11.60+dfsg-1.6+deb12u9
  • imagemagick Debian 13 8:7.1.1.43+dfsg1-1+deb13u8
  • imagemagick Debian 14 8:7.1.2.19+dfsg1-1

debian advisories DEBIAN-CVE-2026-34238

  • imagemagick Ubuntu Pro 14.04 LTS 8:6.7.7.10-6ubuntu3.13+esm26
  • imagemagick Ubuntu Pro 16.04 LTS 8:6.8.9.9-7ubuntu5.16+esm25
  • imagemagick Ubuntu Pro 18.04 LTS 8:6.9.7.4+dfsg-16ubuntu6.15+esm17
  • imagemagick Ubuntu Pro 20.04 LTS 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm15
  • imagemagick Ubuntu Pro 22.04 LTS 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm15
  • imagemagick Ubuntu Pro 24.04 LTS 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm14
  • imagemagick Ubuntu Pro 26.04 LTS 8:7.1.2.18+dfsg1-1ubuntu0.1~esm3

ubuntu advisories UBUNTU-CVE-2026-34238

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 7.1.0.9-150400.6.87.1
  • ImageMagick SLE Module for Development Tools 15 SP7, SLE Module for Desktop Applications 15 SP7 7.1.1.43-150700.3.47.1
  • ImageMagick SLES for SAP 15 SP6, SLES 15 SP6-LTSS 7.1.1.21-150600.3.55.1
  • ImageMagick SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 6.8.8.1-71.241.1

suse advisories SUSE-SU-2026:2580-1SUSE-SU-2026:1598-1SUSE-SU-2026:1597-1SUSE-SU-2026:1596-1

  • ImageMagick openSUSE Leap 16.0 7.1.2.0-160000.8.1
  • ImageMagick openSUSE Tumbleweed 7.1.2.19-2.1

opensuse advisories openSUSE-SU-2026:20606-1openSUSE-SU-2026:10586-1

  • imagemagick Alpine 3.24, Alpine 3.23 7.1.2.19-r0

alpine advisories ALPINE-CVE-2026-34238

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-2026-34238 updated cvss 5.0

ImageMagick: Magick.NET: ImageMagick: Denial of Service via integer overflow in despeckle operation

  • 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
6 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
OSV 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
nuget Magick.NET-Q16-AnyCPU
<14.12.0
14.12.0
nuget Magick.NET-Q16-HDRI-AnyCPU
<14.12.0
14.12.0
nuget Magick.NET-Q16-HDRI-x86
<14.12.0
14.12.0
nuget Magick.NET-Q16-x86
<14.12.0
14.12.0
nuget Magick.NET-Q8-AnyCPU
<14.12.0
14.12.0
nuget Magick.NET-Q8-x86
<14.12.0
14.12.0
julia ImageMagick_jll
<7.1.2023+0
7.1.2023+0

Affected products

  • ImageMagick ImageMagick

Classification

Weakness

References

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.