CVE-2021-21824: Accusoft Imagegear

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

An out-of-bounds write vulnerability exists in the JPG Handle_JPEG420 functionality of Accusoft ImageGear 19.9. A specially crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

Affected products

• Accusoft Imagegear: version 19.9 only

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