CVE-2023-32540: Advantech Webaccess/scada

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

In Advantech WebAccss/SCADA v9.1.3 and prior, there is an arbitrary file overwrite vulnerability, which could allow an attacker to overwrite any file in the operating system (including system files), inject code into an XLS file, and modify the file extension, which could lead to arbitrary code execution.

Affected products

• Advantech Webaccess/scada: up to and including 9.1.3

Published 2023-06-06. Last modified 2026-06-17.