CVE-2020-12026: Advantech Webaccess

High severity, CVSS 8.8. EPSS: 2.3% 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.