CVE-2020-12022: Advantech Webaccess

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that could allow an attacker to inject specially crafted input into memory where it can be executed.

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.