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Fencer Vulns
medium 4.0

CVE-2026-27799 json

ImageMagick has a heap Buffer Over-read in its DJVU image format handler

published 2026-02-25 8 mo ago modified 2026-07-30 3 mo ago also EUVD-2026-8772 , GHSA-r99p-5442-q2x2 , JLSEC-2026-971

cvss
4.0
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 3%
public exploits
0
none known

Summary

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the DJVU image format handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-bounds memory reads. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Patch / fix

  • nuget Magick.NET-Q16-AnyCPU 14.10.3
  • nuget Magick.NET-Q16-HDRI-AnyCPU 14.10.3
  • nuget Magick.NET-Q16-HDRI-OpenMP-arm64 14.10.3
  • nuget Magick.NET-Q16-HDRI-OpenMP-x64 14.10.3
  • nuget Magick.NET-Q16-HDRI-arm64 14.10.3
  • nuget Magick.NET-Q16-HDRI-x64 14.10.3
  • nuget Magick.NET-Q16-HDRI-x86 14.10.3
  • nuget Magick.NET-Q16-OpenMP-arm64 14.10.3
  • nuget Magick.NET-Q16-OpenMP-x64 14.10.3
  • nuget Magick.NET-Q16-OpenMP-x86 14.10.3
  • nuget Magick.NET-Q16-arm64 14.10.3
  • nuget Magick.NET-Q16-x64 14.10.3
  • nuget Magick.NET-Q16-x86 14.10.3
  • nuget Magick.NET-Q8-AnyCPU 14.10.3
  • nuget Magick.NET-Q8-OpenMP-arm64 14.10.3
  • nuget Magick.NET-Q8-OpenMP-x64 14.10.3
  • nuget Magick.NET-Q8-arm64 14.10.3
  • nuget Magick.NET-Q8-x64 14.10.3
  • nuget Magick.NET-Q8-x86 14.10.3
  • julia ImageMagick_jll 7.1.2023+0
  • imagemagick imagemagick 6.9.13-40, 7.1.2-15
  • dlemstra magick.net 14.10.3
  • imagemagick Debian 12 8:6.9.11.60+dfsg-1.6+deb12u7
  • imagemagick Debian 13 8:7.1.1.43+dfsg1-1+deb13u6
  • imagemagick Debian 14 8:7.1.2.15+dfsg1-1

debian advisories DEBIAN-CVE-2026-27799

  • imagemagick Ubuntu Pro 14.04 LTS 8:6.7.7.10-6ubuntu3.13+esm22
  • imagemagick Ubuntu Pro 16.04 LTS 8:6.8.9.9-7ubuntu5.16+esm21
  • imagemagick Ubuntu Pro 18.04 LTS 8:6.9.7.4+dfsg-16ubuntu6.15+esm13
  • imagemagick Ubuntu Pro 20.04 LTS 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm11
  • imagemagick Ubuntu Pro 22.04 LTS 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm11
  • imagemagick Ubuntu Pro 24.04 LTS 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm10

ubuntu advisories UBUNTU-CVE-2026-27799

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 7.1.0.9-150400.6.68.2
  • ImageMagick SLES for SAP 15 SP6, SLES 15 SP6-LTSS, openSUSE Leap 15.6 7.1.1.21-150600.3.42.2
  • ImageMagick SLE Module for Development Tools 15 SP7, SLE Module for Desktop Applications 15 SP7 7.1.1.43-150700.3.37.1
  • ImageMagick SLES LTSS Extended Security 12 SP5 6.8.8.1-71.231.1

suse advisories SUSE-SU-2026:0854-1SUSE-SU-2026:0853-1SUSE-SU-2026:0852-1SUSE-SU-2026:0851-1

  • ImageMagick openSUSE Leap 16.0 7.1.2.0-160000.6.1

opensuse advisories openSUSE-SU-2026:20337-1

  • imagemagick Alpine 3.24, Alpine 3.23, Alpine 3.22 7.1.2.15-r0

alpine advisories ALPINE-CVE-2026-27799

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-2026-27799 updated cvss 4.0

ImageMagick: ImageMagick: Denial of Service and data corruption due to crafted DJVU image processing

  • 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

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
GitHub 3.1 4.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
OSV 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Affected packages

ecosystem package affected fixed in
nuget Magick.NET-Q16-AnyCPU
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-AnyCPU
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-x86
<14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-x86
<14.10.3
14.10.3
nuget Magick.NET-Q16-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q16-x64
<14.10.3
14.10.3
nuget Magick.NET-Q16-x86
<14.10.3
14.10.3
nuget Magick.NET-Q8-AnyCPU
<14.10.3
14.10.3
nuget Magick.NET-Q8-OpenMP-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q8-OpenMP-x64
<14.10.3
14.10.3
nuget Magick.NET-Q8-arm64
<14.10.3
14.10.3
nuget Magick.NET-Q8-x64
<14.10.3
14.10.3
nuget Magick.NET-Q8-x86
<14.10.3
14.10.3
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.