CVE-2026-56378
highpriority · track · 33EPSS 0.004 · 33 %ileDEEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 1.7–8.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (39)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0484ImageMagick: Mehrere SchwachstellenDeutsch2026-02-23csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in ImageMagick ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen oder andere nicht näher definierte Angriffe durchzuführen.
- GHSA-wgxp-q8xq-wpp9ImageMagick: Malicious PCD files trigger 1‑byte heap Out-of-bounds Read and DoS 2026-02-25ghsa · osvUS
The PCD coder’s DecodeImage loop allows a crafted PCD file to trigger a 1‑byte heap out-of-bounds read when decoding an image (Denial of service) and potential disclosure of adjacent heap byte.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/ImageMagick/ImageMagickPatchcnnvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wgxp-q8xq-wpp9cnnvd
- https://www.vulncheck.com/advisories/imagemagick-heap-out-of-bounds-read-in-pcd-decodercnnvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wgxp-q8xq-wpp9enisa_euvd
- https://www.vulncheck.com/advisories/imagemagick-heap-out-of-bounds-read-in-pcd-decoderenisa_euvd
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wgxp-q8xq-wpp9Third Party Advisorynvd
- https://www.vulncheck.com/advisories/imagemagick-heap-out-of-bounds-read-in-pcd-decoderThird Party Advisorynvd
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