CVE-2020-19609: Artifex Mupdf

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Artifex Mupdf: before 1.18.0 (fixed in 1.18.0)
• Debian Debian Linux: version 9.0 only

Published 2021-07-21. Last modified 2026-06-17.