CVE-2021-21793: Accusoft Imagegear

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

An out-of-bounds write vulnerability exists in the JPG sof_nb_comp header processing functionality of Accusoft ImageGear 19.8 and 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 19.8 only; version 19.9 only

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