CVE-2019-19636: Saitoha Libsixel

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixel_encode_body at tosixel.c.

Affected products

• Saitoha Libsixel: version 1.8.2 only

Published 2019-12-08. Last modified 2026-06-17.