CVE-2019-13556: Advantech Webaccess

High severity, CVSS 8.8. EPSS: 2.1% chance of exploitation in the next 30 days.

In WebAccess versions 8.4.1 and prior, multiple stack-based buffer overflow vulnerabilities are caused by a lack of proper validation of the length of user-supplied data. Exploitation of these vulnerabilities may allow remote code execution.

Affected products

• Advantech Webaccess: up to and including 8.4.1

Published 2019-09-18. Last modified 2026-06-17.