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High severity · published Nov 6, 2025
CVE-2025-34239
Advantech WebAccess/VPN < 1.1.5 Command Injection in AppManagementController.appUpgradeAction()
7.2
CVSS
1.7%
EPSS
No
On KEV
Description
Advantech WebAccess/VPN versions prior to 1.1.5 contain a command injection vulnerability in AppManagementController.appUpgradeAction() that allows an authenticated system administrator to execute arbitrary commands as the web server user (www-data) by supplying a crafted uploaded filename.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
WebAccess/VPN · Advantech
before 1.1.5 · source: vendor, NVD
Affected product
WE
WebAccess/VPN
Advantech
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-34239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-34239
Product
https://icr.advantech.com/download/software
Release Notes
https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf
Third Party Advisory
https://www.vulncheck.com/advisories/advantech-webaccess-vpn-command-injection-in-appmanagementcontroller
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