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CVE-2026-23876

Imagemagick buffer overflow

8.1 HIGHPublic exploitEPSS 0.66%
  1. Published20 Jan 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Imagemagick≥ 7.0.0-0 < 7.1.2-13 · < 6.9.13-38

Remediation

Fixed in
Imagemagick≥ 7.1.2-13

References

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Frequently asked

Is CVE-2026-23876 being actively exploited?

CVE-2026-23876 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.66%.

How severe is CVE-2026-23876?

CVE-2026-23876 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.66% probability of exploitation.

Which products are affected by CVE-2026-23876?

Affected products include Imagemagick.

How do I fix CVE-2026-23876?

Upgrade affected software to a fixed version, for example Imagemagick 7.1.2-13 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-23876 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.