CVE-2020-13553: Advantech Webaccess/scada

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

An exploitable local privilege elevation vulnerability exists in the file system permissions of Advantech WebAccess/SCADA 9.0.1 installation. In webvrpcs Run Key Privilege Escalation in installation folder of WebAccess, an attacker can either replace binary or loaded modules to execute code with NT SYSTEM privilege.

Affected products

• Advantech Webaccess/scada: version 9.0.1 only

Published 2021-02-17. Last modified 2026-06-17.