CVE-2020-21050: Saitoha Libsixel

Medium severity, CVSS 6.5. EPSS: 1.6% chance of exploitation in the next 30 days.

Libsixel prior to v1.8.3 contains a stack buffer overflow in the function gif_process_raster at fromgif.c.

Affected products

• Saitoha Libsixel: before 1.8.3 (fixed in 1.8.3)

Published 2021-09-14. Last modified 2026-06-17.