What is CVE-2023-51107?

CVE-2023-51107 is a high-severity vulnerability in Artifex Mupdf, classified under Divide By Zero. CVSS score: 7.5/10. Published 2023-12-26.

How severe is CVE-2023-51107?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Artifex Mupdf

CVE-2023-51107

A floating point exception (divide-by-zero) vulnerability was discovered in Artifex MuPDF 1.23.4 in functon compute_color() of jquant2.c. NOTE: this is disputed by the supplier because there was not reasonable evidence to determine the existence of a vulnerability or identify the affected product.

Published 2023-12-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Artifex Mupdf — versions 1.23.4

Weakness classification (CWE)

CWE-369 — Divide By Zero

References

github.com/dongyuma/sox-defects/blob/main/mupdf-defects.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-51107?: CVE-2023-51107 is a high-severity vulnerability in Artifex Mupdf, classified under Divide By Zero. CVSS score: 7.5/10. Published 2023-12-26.
How severe is CVE-2023-51107?: High severity. CVSS v3 base score is 7.5 out of 10.