RCE in Advantech Webaccess/vpn
CVE-2025-34239
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.018 (75.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Advantech Webaccess/vpn — versions 0
- Advantech Webaccess\/vpn
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Release Notes, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
- disclosure@vulncheck.com (Product, product)
Frequently asked questions
- What is CVE-2025-34239?
- CVE-2025-34239 is a high-severity vulnerability in Advantech Webaccess/vpn, classified under OS Command Injection. CVSS score: 7.2/10. Published 2025-11-06.
- How severe is CVE-2025-34239?
- High severity. CVSS v3 base score is 7.2 out of 10.