medium5.6
CVE-2026-109964
ImageMagick before 7.1.2-33 and 6.9.13-58 contains a heap buffer underwrite vulnerability in DecodeImage() in coders/pict.c on 32-bit builds due to pointer ari…
Impact
ImageMagick before 7.1.2-33 and 6.9.13-58 contains a heap buffer underwrite vulnerability in DecodeImage() in coders/pict.c on 32-bit builds due to pointer arithmetic overflow. Attackers can supply a crafted PICT file with maximized row, column and bytes-per-line values to bypass bounds checks and write up to 128 controlled bytes below the heap buffer, causing crashes or code execution.
Affected products
| Product | Affected versions |
|---|---|
| ImageMagick | before 7.1.2-33 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/ImageMagick/ImageMagick
- https://github.com/ImageMagick/ImageMagick/blob/7.1.2-32/coders/pict.c#L503-L540
- https://github.com/ImageMagick/ImageMagick/commit/63dde0cf281383ab69432b88305f7dcd6a8ce900
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mqmp-r5jh-jx7w
- https://github.com/ImageMagick/ImageMagick6/commit/c18c5d5fb7f1d87ddbe0a02e9d1207c89b24588c
- https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-33-and-6.9.13-58-heap-buffer-underwrite-in-pict-decoder