Is CVE-2026-40310 actively exploited?

CVE-2026-40310 has no public evidence of in-the-wild exploitation as of 2026-04-17.

What is the CVSS score for CVE-2026-40310?

CVE-2026-40310 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

How do I patch CVE-2026-40310?

Patch guidance is available from imagemagick security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-40310.

CVE-2026-40310 - remediation guidance & executive summary

Q: Which products are affected by CVE-2026-40310?

2 products: imagemagick imagemagick, imagemagick imagemagick.

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Versions below both 7.1.2-19 and 6.9.13-44, contain a heap out-of-bounds write in the JP2 encoder with when a user specifies an invalid sampling index. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-122 CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: IMAGEMAGICK
Published: 4/13/2026
Last Modified: 4/17/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-40310

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary