CVE-2020-12006: Advantech Webaccess

Critical severity, CVSS 9.8. EPSS: 3.7% chance of exploitation in the next 30 days.

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple relative path traversal vulnerabilities exist that may allow a low privilege user to overwrite files outside the application’s control.

Affected products

• Advantech Webaccess: up to and including 8.4.4; version 9.0.0 only

Published 2020-05-08. Last modified 2026-06-17.