# CVE-2026-109964: imagemagick: ImageMagick before 7.1.2-33 and 6.9.13-58 contains a heap buffer underwrite vulnerability in DecodeImage() in coders/...

CVE-2026-109964 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-109964, released October 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-109964
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0034
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 13, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | GraphicsMagick sles 15.7 | 1.3.42-150600.3.51.1 | [SUSE-SU-2026:5095-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5095-1.md) | Nov 7, 2026 |
| Linux | imagemagick Debian 12.15 (bookworm) | 8:6.9.11.60+dfsg-1.6+deb12u15 | [DEBIAN-CVE-2026-109964](https://patchblox.com/security/data/fix/linux/debian-cve-2026-109964.md) | Oct 29, 2026 |
| Linux | imagemagick Debian 13.5 (trixie) | 8:7.1.1.43+dfsg1-1+deb13u14 | [DEBIAN-CVE-2026-109964](https://patchblox.com/security/data/fix/linux/debian-cve-2026-109964.md) | Oct 29, 2026 |
| Linux | imagemagick Debian 14 | 8:7.1.2.33+dfsg1-1 | [DEBIAN-CVE-2026-109964](https://patchblox.com/security/data/fix/linux/debian-cve-2026-109964.md) | Oct 29, 2026 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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