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Vulnerability · Published Jul 1, 2026 · Assigned by GitHub_M

CVE-2026-55577ImageMagick: Heap Buffer Overflow in ImageMagick MVG decoder

Medium 5.9

In plain English

A medium-severity out-of-bounds write in ImageMagick from ImageMagick. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-51 and 7.1.2-26, a heap buffer overflow occurs in the MVG decoder that could result in an out of bounds write when processing a crafted image. This issue has been fixed in versions 6.9.13-51 and 7.1.2-26.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.23imagemagick7.1.2.27-r0ALPINE-CVE-2026-55577
Alpine:v3.24imagemagick7.1.2.27-r0ALPINE-CVE-2026-55577
Debian:12imagemagick8:6.9.11.60+dfsg-1.6+deb12u12DEBIAN-CVE-2026-55577
Debian:13imagemagick8:7.1.1.43+dfsg1-1+deb13u11DEBIAN-CVE-2026-55577
Debian:14imagemagick8:7.1.2.26+dfsg1-1DEBIAN-CVE-2026-55577
Ubuntu:25.10imagemagickno fix listedUBUNTU-CVE-2026-55577
Ubuntu:26.10imagemagickno fix listedUBUNTU-CVE-2026-55577

Affected products (as reported)

VendorProductVersions
ImageMagick ImageMagick >= 7.0.1-0, < 7.1.2-26< 6.9.13-51

Weakness: CWE-754, CWE-755, CWE-787 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References