Vulnerability · Published Nov 6, 2025 · Assigned by VulnCheck
CVE-2025-34239Advantech WebAccess/VPN < 1.1.5 Command Injection in AppManagementController.appUpgradeAction()
High 8.6
In plain English
A high-severity OS command injection in WebAccess/VPN from Advantech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities).
Severity (CVSS 4.0)8.6High
Exploit odds (30 days)1.7%top 22.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Advantech | WebAccess/VPN | 0 – before 1.1.5 |
Weakness: CWE-78 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N