CVE-2021-21946: Accusoft Imagegear

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

Two heap-based buffer overflow vulnerabilities exists in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these vulnerabilities.This heap-based buffer overflow takes place when the `SOF3` precision is lower than 9.

Affected products

• Accusoft Imagegear: version 19.10 only

Published 2022-04-14. Last modified 2026-06-17.