NULL pointer dereference in Artifex Mupdf
CVE-2026-92413
A flaw has been found in Artifex MuPDF up to b6d17493700c621c0e70036980a6ebd06d2202c9. Affected by this vulnerability is the function pdf_open_filter of the file pdf-stream.c of the component PDF Xref Loading. Executing a manipulation can lead to null pointer dereference. The attack can be launched remotely. The exploit has been published and may be used. This patch is called 3df1e30f9d7b77260e13bd0dbe1928ddeba8386e. Applying a patch is advised to resolve this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Artifex Mupdf — versions b6d17493700c621c0e70036980a6ebd06d2202c9
Weakness classification (CWE)
References
- vuldb.com/vuln/405593 (technical-description, vdb-entry)
- vuldb.com/vuln/405593/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-92413 (third-party-advisory)
- vuldb.com/submit/940975 (third-party-advisory)
- bugs.ghostscript.com/show_bug.cgi (issue-tracking)
- bugs.ghostscript.com/attachment.cgi (exploit)
- cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/ (patch)
- artifex.com/ (product)
Frequently asked questions
- What is CVE-2026-92413?
- CVE-2026-92413 is a medium-severity vulnerability in Artifex Mupdf, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-09-16.
- How severe is CVE-2026-92413?
- Medium severity. CVSS v3 base score is 4.3 out of 10.