CVE-2026-23876
9.8
CRITICAL
CVSS 3.1
EPSS 0.11%
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.
How to fix CVE-2026-23876
To remediate CVE-2026-23876, upgrade the affected package to a fixed version below.
- —upgrade to 8:6.9.11.60+dfsg-1.3+deb11u9 or later
Is CVE-2026-23876 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 8:6.9.11.60+dfsg-1.3+deb11u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |