VULNERABILITY INTELLIGENCE

CVE-2021-47719

CVSS score8.7 HIGH

EPSS probability0.49%

CISA KEVNot currently listed

Published2025-12-09

Last modified2026-06-17

Description

COMMAX WebViewer ActiveX Control 2.1.4.5 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by providing excessively long string arrays through multiple functions. Attackers can exploit boundary errors in Commax_WebViewer.ocx to cause buffer overflow conditions and potentially gain code execution.