What’s Vulnerable › Vulnerabilities

CVE-2025-34243: Advantech WebAccess/VPN < 1.1.5 SQL Injection via AjaxFwRulesController.ajaxNetworkFwRulesAction()

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-06 · updated 2026-10-07
• Weakness: CWE-89

Description

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

How to fix

Upgrade to a fixed version: Advantech Webaccess/Vpn 1.1.5. Check the vendor advisory for mitigations.

References

• https://icr.advantech.com/download/software
• https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf
• https://www.vulncheck.com/advisories/advantech-webaccess-vpn-sqli-via-ajaxfwrulescontroller-ajaxnetworkfwrulesaction

Get alerted when CVE-2025-34243 or the next vulnerability affects your stack