CVE-2021-23191: Htmldoc Project Htmldoc

High severity, CVSS 7.8. EPSS: 1.1% chance of exploitation in the next 30 days.

A security issue was found in htmldoc v1.9.12 and before. A NULL pointer dereference in the function image_load_jpeg() in image.cxx may result in denial of service.

Affected products

• Htmldoc Project Htmldoc: up to and including 1.9.12

Published 2022-03-02. Last modified 2026-06-17.