# CVE-2023-51104: mupdf-tools: A floating point exception (divide-by-zero) vulnerability was discovered in Artifex MuPDF 1.23.4 in function pnm_bina...

CVE-2023-51104 is fixed in 2 products on 1 platform, first by mupdf 1.16.1+ds1-1ubuntu1+esm2, released August 4, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-51104
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0091
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 26, 2023

## Description

A floating point exception (divide-by-zero) vulnerability was discovered in Artifex MuPDF 1.23.4 in function pnm_binary_read_image() of load-pnm.c when span equals zero.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mupdf Ubuntu 20.04 LTS (focal) | 1.16.1+ds1-1ubuntu1+esm2 | [mupdf 1.16.1+ds1-1ubuntu1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mupdf-1.16.1-ds1-1ubuntu1-esm2.md) | Aug 4, 2025 |
| Linux | mupdf Ubuntu 22.04.1 LTS (jammy) | 1.19.0+ds1-2ubuntu0.1~esm1 | [mupdf 1.19.0+ds1-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mupdf-1.19.0-ds1-2ubuntu0.1-esm1.md) | Aug 4, 2025 |
| Linux | mupdf Ubuntu 24.04.5 LTS (noble) | 1.23.10+ds1-1ubuntu0.1~esm1 | [mupdf 1.23.10+ds1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mupdf-1.23.10-ds1-1ubuntu0.1-esm1.md) | Aug 4, 2025 |
| Linux | mupdf-tools Ubuntu 20.04 LTS (focal) | 1.16.1+ds1-1ubuntu1+esm2 | [mupdf-tools 1.16.1+ds1-1ubuntu1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mupdf-tools-1.16.1-ds1-1ubuntu1-esm2.md) | Aug 4, 2025 |
| Linux | mupdf-tools Ubuntu 22.04.1 LTS (jammy) | 1.19.0+ds1-2ubuntu0.1~esm1 | [mupdf-tools 1.19.0+ds1-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mupdf-tools-1.19.0-ds1-2ubuntu0.1-esm1.md) | Aug 4, 2025 |
| Linux | mupdf-tools Ubuntu 24.04.5 LTS (noble) | 1.23.10+ds1-1ubuntu0.1~esm1 | [mupdf-tools 1.23.10+ds1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mupdf-tools-1.23.10-ds1-1ubuntu0.1-esm1.md) | Aug 4, 2025 |

---

Data as of 2026-11-09T07:25:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.