CVE-2023-51104 — A floating point exception (divide-by-zero) vulnerability was discovered in Arti

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-26T00:00:00.000Z
• Last modified: 2025-04-23T16:08:58.141Z

09References

• github.com — https://github.com/dongyuma/sox-defects/blob/main/mupdf-defects.md
• cgit.ghostscript.com — http://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=0c06a4e5151951…
• bugs.ghostscript.com — https://bugs.ghostscript.com/show_bug.cgi?id=707621