CVE-2026-25970

ImageMagick SIXEL Decoder Has Signed Integer Overflow, Leading to Memory Corruption

Published Feb 24, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
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 signed integer overflow vulnerability in ImageMagick's SIXEL decoder allows an attacker to trigger memory corruption and denial of service when processing a maliciously crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer arithmetic using signed 32-bit integers overflows. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4497-1 imagemagick security update
Debian DSA Debian DSA DSA-6158-1 imagemagick security update
Debian DSA Debian DSA DSA-6159-1 imagemagick security update
Github GHSA Github GHSA GHSA-xg29-8ghv-v4xr ImageMagick Has Signed Integer Overflow in SIXEL Decoder, Leading to Memory Corruption
Ubuntu USN Ubuntu USN USN-8127-1 ImageMagick vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Imagemagick
Imagemagick imagemagick
Vendors & Products Imagemagick
Imagemagick imagemagick
Type Values Removed Values Added
Description 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 signed integer overflow vulnerability in ImageMagick's SIXEL decoder allows an attacker to trigger memory corruption and denial of service when processing a maliciously crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer arithmetic using signed 32-bit integers overflows. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Title ImageMagick SIXEL Decoder Has Signed Integer Overflow, Leading to Memory Corruption
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 23, 2026, 3:49 PM
Reserved
Feb 9, 2026, 5:13 PM
Status
Analyzed
Published
Feb 24, 2026, 2:16 AM
Modified
Jun 17, 2026, 10:25 AM
Severity
Moderate
Public date
Feb 24, 2026, 1:35 AM