How severe is CVE-2026-56378?

CVE-2026-56378 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-56378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-56378?

CVE-2026-56378 affects Imagemagick. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-56378?

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

Does CVE-2026-56378 have an EU (EUVD) identifier?

Yes. CVE-2026-56378 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38174.

When was CVE-2026-56378 published?

CVE-2026-56378 was published on 2026-06-21 and last updated on 2026-06-26.

CVE-2026-56378

CVE-2026-56378 is a low-severity vulnerability in Imagemagick with a CVSS 3.x base score of 3.7. 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-125.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v4: 6.3
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38174
Weakness: CWE-125
Affected product: Imagemagick
Published: 2026-06-21
Last modified: 2026-06-26

Description

ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.

Frequently asked questions

What is CVE-2026-56378?: ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
How severe is CVE-2026-56378?: CVE-2026-56378 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-56378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-56378?: CVE-2026-56378 affects Imagemagick. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-56378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-56378 have an EU (EUVD) identifier?: Yes. CVE-2026-56378 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38174.
When was CVE-2026-56378 published?: CVE-2026-56378 was published on 2026-06-21 and last updated on 2026-06-26.

References

Affected products (1)

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

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