CVE-2021-21808: Accusoft Imagegear

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A memory corruption vulnerability exists in the PNG png_palette_process functionality of Accusoft ImageGear 19.9. A specially crafted malformed file can lead to a heap buffer overflow. An attacker can provide malicious inputs to trigger this vulnerability.

Affected products

• Accusoft Imagegear: version 19.9 only

Published 2021-06-11. Last modified 2026-06-17.