CVE-2026-56378

LOW

ImageMagick - Heap Out-of-Bounds Read in PCD Decoder

Title source: cna
STIX 2.1

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.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory
GHSA Advisory GHSA-wgxp-q8xq-wpp9
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wgxp-q8xq-wpp9
Third Party Advisory third-party-advisory
VulnCheck Advisory: ImageMagick - Heap Out-of-Bounds Read in PCD Decoder
https://www.vulncheck.com/advisories/imagemagick-heap-out-of-bounds-read-in-pcd-decoder

Scores

CVSS v3 3.7
EPSS 0.0019
EPSS Percentile 8.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (4)
ImageMagick/ImageMagick < 6.9.13-40
ImageMagick/ImageMagick < 7.1.2-15
ImageMagick/ImageMagick 6.9.13-40
ImageMagick/ImageMagick 7.1.2-15
Published Jun 21, 2026
Tracked Since Jun 21, 2026