SQL Injection Vulnerability in Advantech WebAccess/VPN Affects Multiple Versions
CVE-2025-34243

5.3MEDIUM

Key Information:

Vendor

Advantech
Status
Webaccess/vpn
Vendor
CVE Published:
6 November 2025

What is CVE-2025-34243?

The Advantech WebAccess/VPN application is impacted by a SQL injection vulnerability stemming from improper validation within the AjaxFwRulesController.ajaxNetworkFwRulesAction() function. This vulnerability allows a low-privileged authenticated user to manipulate datatable search parameters, potentially disclosing sensitive database information. It is crucial for users to update to version 1.1.5 or higher to mitigate this risk.

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Deploy the Patch

Affected Version(s)

WebAccess/VPN 0 < 1.1.5

References

https://icr.advantech.com/support/router-models/download/...
vendor-advisorypatch
https://www.vulncheck.com/advisories/advantech-webaccess-...
third-party-advisory
https://icr.advantech.com/download/software
product

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alex Williams from Pellera Technologies
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