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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.017 (76.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Advantech Webaccess/vpn — versions 0
- Advantech Webaccess\/vpn
Weakness classification (CWE)
References
- icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025… (vendor-advisory, Release Notes, patch)
- www.vulncheck.com/advisories/advantech-webaccess-vpn-command-injection-in-appma… (Third Party Advisory, third-party-advisory)
- icr.advantech.com/download/software (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.