Is CVE-2026-40312 in the CISA KEV catalog?

No. CVE-2026-40312 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-40312?

CVE-2026-40312 has a CVSS v3 base score of 6.2 (MEDIUM).

What is the EPSS score for CVE-2026-40312?

CVE-2026-40312 has an EPSS score of 0.18% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40312?

Upgrade imagemagick on debian 13 to 8:7.1.1.43+dfsg1-1+deb13u8 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2026-40312

MEDIUM

6.2

CVSS v3

NVD

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19.

CWE-193

How to fix

Remediation Available

imagemagickDebian

Fixed in:8:7.1.1.43+dfsg1-1+deb13u8CVE-2026-40312

Fixed in:8:7.1.2.19+dfsg1-1CVE-2026-40312

ImageMagick Q16Windows application

Affected:7.1.2-19Fixed in:7.1.2-19ImageMagick Studio LLC

ImageMagick Q16-HDRIWindows application

Affected:7.1.2-19Fixed in:7.1.2-19ImageMagick Studio LLC

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.18%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Release Notes2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-17.