CVE-2026-56378
ImageMagick - Heap Out-of-Bounds Read in PCD Decoder
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jun 21, 2026
- Updated
- Oct 29, 2026
- Reserved
- Jun 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
ImageMagickImageMagick |
|
ImageMagickImageMagick |
|
References
- GHSA Advisory GHSA-wgxp-q8xq-wpp9vendor-advisory
- VulnCheck Advisory: ImageMagick - Heap Out-of-Bounds Read in PCD Decoderthird-party-advisory
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