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.

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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:
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
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