CVE-2018-19763: Saitoha Libsixel

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

There is a heap-based buffer over-read at writer.c (function: write_png_to_file) in libsixel 1.8.2 that will cause a denial of service.

Affected products

Published 2018-11-30. Last modified 2026-06-17.