CVE-2020-36120: Saitoha Libsixel

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

Buffer Overflow in the "sixel_encoder_encode_bytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service (DoS).

Affected products

• Saitoha Libsixel: version 1.8.6 only

Published 2021-04-14. Last modified 2026-06-17.