Is CVE-2026-56378 actively exploited?

No active exploitation of CVE-2026-56378 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56378 be exploited remotely?

Yes. CVE-2026-56378 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56378?

CVE-2026-56378 has a CVSS score of 8.2 (HIGH).

HOME VULNERABILITIESCVE-2026-56378

HIGH

CVE-2026-56378

CWE-125Published: June 21, 2026· Updated: Jun 26, 2026

8.2

CVSS v3.1

EPSS:0.19%probability of exploitation in 30 daysPercentile:8.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-56378 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.2.