CVE-2020-19609

Name: CVE-2020-19609
Creator: NVD / NIST
Published: 2021-07-21T15:15:12.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2020-19609 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Artifex MuPDF before 1.18.0 has a heap based buffer over-write in tiff_expand_colormap() function when parsing TIFF files allowing attackers to cause a denial of service.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

Artifex MuPDF before 1.18.0 has a heap based buffer over-write in tiff_expand_colormap() function when parsing TIFF files allowing attackers to cause a denial of service.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.05%

59.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Artifex	Mupdf	< 1.18.0
Debian	Debian Linux	9.0

References

http://git.ghostscript.com/?p=mupdf.git%3Bh=b7892cdc7fae62aa57d63ae62144e1f11b5f9275
https://bugs.ghostscript.com/show_bug.cgi?id=701176Issue Tracking, Patch, Vendor Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=703076Exploit, Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00013.htmlThird Party Advisory
http://git.ghostscript.com/?p=mupdf.git%3Bh=b7892cdc7fae62aa57d63ae62144e1f11b5f9275
https://bugs.ghostscript.com/show_bug.cgi?id=701176Issue Tracking, Patch, Vendor Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=703076Exploit, Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00013.htmlThird Party Advisory

Timeline

Published: Jul 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-19609?

Artifex MuPDF before 1.18.0 has a heap based buffer over-write in tiff_expand_colormap() function when parsing TIFF files allowing attackers to cause a denial of service.

How severe is CVE-2020-19609?

CVE-2020-19609 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2020-19609?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-19609?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST