Out-of-bounds write in ImageMagick - CVE-2026-55577

Vulnerability identifier: #VU135665

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-2026-55577

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to out-of-bounds write in the MVG decoder when processing a crafted image. A remote attacker can supply a specially crafted image to cause a denial of service.

ImageMagick
openEuler
ImageMagick-help
ImageMagick-perl
ImageMagick-devel
ImageMagick-debugsource
ImageMagick-debuginfo
ImageMagick-c++-devel
ImageMagick-c++
ImageMagick

Install security update from vendor's website.

ImageMagick - addressed in versions 6.9.13-51, 7.1.2-26
ImageMagick-help - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-perl - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-devel - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-debugsource - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-debuginfo - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-c++-devel - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick-c++ - addressed in versions 6.9.13.51-1, 7.1.2.26-1
ImageMagick - addressed in versions 6.9.13.51-1, 7.1.2.26-1

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wx47-rm3x-jx6p

• Multiple vulnerabilities in ImageMagick
• openEuler 24.03 LTS SP3 update for ImageMagick
• openEuler 24.03 LTS SP1 update for ImageMagick
• openEuler 22.03 LTS SP4 update for ImageMagick
• openEuler 20.03 LTS SP4 update for ImageMagick