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Vulnerability record · CVE-2019-7321 · published 13 June 2019

CVE-2019-7321: Artifex mupdf out-of-bounds write vulnerability

Artifex · Mupdf

Usage of an uninitialized variable in the function fz_load_jpeg in Artifex MuPDF 1.14 can result in a heap overflow vulnerability that allows an attacker to execute arbitrary code.

9.8 CVSS 3.0 Critical EPSS 3.2% · top 12.3% CWE-787 · Out-of-bounds writeCWE-908 · Use of uninitialized resource
9.8CVSS 3.0 base score, v2 7.5
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

Usage of an uninitialized variable in the function fz_load_jpeg in Artifex MuPDF 1.14 can result in a heap overflow vulnerability that allows an attacker to execute arbitrary code.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.ghostscript.com/show_bug.cgi?id=700560
https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=2be83b57e77938fddbb06bdffb11979ad89a9c7d
https://github.com/ereisr00/bagofbugz/tree/master/MuPDF/700560 PatchThird Party Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=700560
https://github.com/ereisr00/bagofbugz/tree/master/MuPDF/700560 PatchThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-7321), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.