CVE-2025-34243: Advantech Webaccess/vpn

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Advantech WebAccess/VPN versions prior to 1.1.5 contain a SQL injection vulnerability in AjaxFwRulesController.ajaxNetworkFwRulesAction() that allows an authenticated low-privileged observer user to inject SQL via datatable search parameters, leading to disclosure of database information.

Affected products

• Advantech Webaccess/vpn: before 1.1.5 (fixed in 1.1.5)

Published 2025-11-06. Last modified 2026-10-07.