Heap-based buffer overflow in ImageMagick - CVE-2026-48994

Vulnerability identifier: #VU133107

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-48994

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in MAT decoder on 32-bit systems. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and cause a denial of service condition on the target system.

ImageMagick
Debian Linux
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Desktop Applications Module
openSUSE Leap
libMagick++-7_Q16HDRI5-64bit-debuginfo
libMagick++-7_Q16HDRI5-32bit-debuginfo
ImageMagick-devel-32bit
libMagickWand-7_Q16HDRI10-32bit-debuginfo
libMagickCore-7_Q16HDRI10-32bit
libMagick++-devel-32bit
libMagickCore-7_Q16HDRI10-32bit-debuginfo
libMagickWand-7_Q16HDRI10-32bit
libMagick++-7_Q16HDRI5-32bit
ImageMagick-extra
libMagickCore-7_Q16HDRI10-64bit
libMagick++-7_Q16HDRI5-64bit
libMagickWand-7_Q16HDRI10-64bit
libMagickCore-7_Q16HDRI10-64bit-debuginfo
libMagickWand-7_Q16HDRI10-64bit-debuginfo
libMagick++-devel-64bit
ImageMagick-devel-64bit
ImageMagick-doc
perl-PerlMagick-debuginfo
libMagickCore-7_Q16HDRI10
ImageMagick-config-7-upstream
libMagickWand-7_Q16HDRI10-debuginfo
ImageMagick
ImageMagick-debuginfo
libMagickWand-7_Q16HDRI10
perl-PerlMagick
ImageMagick-devel
libMagick++-devel
ImageMagick-debugsource
libMagick++-7_Q16HDRI5-debuginfo
libMagick++-7_Q16HDRI5
ImageMagick-config-7-SUSE
libMagickCore-7_Q16HDRI10-debuginfo
ImageMagick-extra-debuginfo
imagemagick (Debian package)

Install updates from vendor's website.

ImageMagick - addressed in versions 6.9.13-48, 7.1.2-24
libMagick++-7_Q16HDRI5-64bit-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagick++-7_Q16HDRI5-32bit-debuginfo - update to 7.1.0.9-150400.6.87.1
ImageMagick-devel-32bit - update to 7.1.0.9-150400.6.87.1
libMagickWand-7_Q16HDRI10-32bit-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagickCore-7_Q16HDRI10-32bit - update to 7.1.0.9-150400.6.87.1
libMagick++-devel-32bit - update to 7.1.0.9-150400.6.87.1
libMagickCore-7_Q16HDRI10-32bit-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagickWand-7_Q16HDRI10-32bit - update to 7.1.0.9-150400.6.87.1
libMagick++-7_Q16HDRI5-32bit - update to 7.1.0.9-150400.6.87.1
ImageMagick-extra - update to 7.1.0.9-150400.6.87.1
libMagickCore-7_Q16HDRI10-64bit - update to 7.1.0.9-150400.6.87.1
libMagick++-7_Q16HDRI5-64bit - update to 7.1.0.9-150400.6.87.1
libMagickWand-7_Q16HDRI10-64bit - update to 7.1.0.9-150400.6.87.1
libMagickCore-7_Q16HDRI10-64bit-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagickWand-7_Q16HDRI10-64bit-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagick++-devel-64bit - update to 7.1.0.9-150400.6.87.1
ImageMagick-devel-64bit - update to 7.1.0.9-150400.6.87.1
ImageMagick-doc - update to 7.1.0.9-150400.6.87.1
perl-PerlMagick-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagickCore-7_Q16HDRI10 - update to 7.1.0.9-150400.6.87.1
ImageMagick-config-7-upstream - update to 7.1.0.9-150400.6.87.1
libMagickWand-7_Q16HDRI10-debuginfo - update to 7.1.0.9-150400.6.87.1
ImageMagick - update to 7.1.0.9-150400.6.87.1
ImageMagick-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagickWand-7_Q16HDRI10 - update to 7.1.0.9-150400.6.87.1
perl-PerlMagick - update to 7.1.0.9-150400.6.87.1
ImageMagick-devel - update to 7.1.0.9-150400.6.87.1
libMagick++-devel - update to 7.1.0.9-150400.6.87.1
ImageMagick-debugsource - update to 7.1.0.9-150400.6.87.1
libMagick++-7_Q16HDRI5-debuginfo - update to 7.1.0.9-150400.6.87.1
libMagick++-7_Q16HDRI5 - update to 7.1.0.9-150400.6.87.1
ImageMagick-config-7-SUSE - update to 7.1.0.9-150400.6.87.1
libMagickCore-7_Q16HDRI10-debuginfo - update to 7.1.0.9-150400.6.87.1
ImageMagick-extra-debuginfo - update to 7.1.0.9-150400.6.87.1
imagemagick (Debian package) - update to 8:7.1.1.43+dfsg1-1+deb13u10

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-4v89-6mgq-6rgc

• Denial of service in ImageMagick
• Debian update for imagemagick
• SUSE update for ImageMagick