How severe is CVE-2026-40310?

CVE-2026-40310 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-40310 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40310?

CVE-2026-40310 affects Imagemagick. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40310?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-40310 have an EU (EUVD) identifier?

Yes. CVE-2026-40310 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22116.

When was CVE-2026-40310 published?

CVE-2026-40310 was published on 2026-04-13 and last updated on 2026-06-17.

CVE-2026-40310

CVE-2026-40310 is a medium-severity vulnerability in Imagemagick with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22116
Weakness: CWE-122
Affected product: Imagemagick
Published: 2026-04-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-40310?: 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.
How severe is CVE-2026-40310?: CVE-2026-40310 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-40310 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40310?: CVE-2026-40310 affects Imagemagick. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40310?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40310 have an EU (EUVD) identifier?: Yes. CVE-2026-40310 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22116.
When was CVE-2026-40310 published?: CVE-2026-40310 was published on 2026-04-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*

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