CVE-2021-21821: Accusoft Imagegear

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

A stack-based buffer overflow vulnerability exists in the PDF process_fontname functionality of Accusoft ImageGear 19.9. A specially crafted malformed file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Affected products

• Accusoft Imagegear: version 19.9 only

Published 2021-07-08. Last modified 2026-06-17.