CVE-2023-2866: Advantech Webaccess

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

If an attacker can trick an authenticated user into loading a maliciously crafted .zip file onto Advantech WebAccess version 8.4.5, a web shell could be used to give the attacker full control of the SCADA server.

Affected products

• Advantech Webaccess: version 8.4.5 only

Published 2023-06-07. Last modified 2026-06-17.