Command Injection Vulnerability in Advantech WebAccess/VPN
CVE-2025-34239

8.6HIGH

Key Information:

Vendor

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

What is CVE-2025-34239?

The Advantech WebAccess/VPN, particularly versions prior to 1.1.5, is affected by a command injection vulnerability found in the AppManagementController.appUpgradeAction() function. This flaw could enable an authenticated system administrator to execute arbitrary commands on the server as the 'www-data' user by manipulating the uploaded filename. It is essential for users of this product to apply the latest security updates to mitigate the risk posed by this vulnerability.

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:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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
JSON
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CVE-2025-34239 : Command Injection Vulnerability in Advantech WebAccess/VPN