CVE-2019-6521: Advantech Webaccess/scada

High severity, CVSS 8.6. EPSS: 1.9% chance of exploitation in the next 30 days.

WebAccess/SCADA, Version 8.3. Specially crafted requests could allow a possible authentication bypass that could allow an attacker to obtain and manipulate sensitive information.

Affected products

• Advantech Webaccess/scada: version 8.3 only

Published 2019-02-05. Last modified 2026-06-17.