High severity7.2NVD Advisory· Published Nov 6, 2025· Updated Jun 17, 2026

CVE-2025-34239

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Advantech/Webaccess\/vpn
cpe:2.3:a:advantech:webaccess\/vpn:*:*:*:*:*:*:*:*
Range: <1.1.5
Advantech/Webaccessllm-fuzzy2 versions
<1.1.5+ 1 more
- (no CPE)range: <1.1.5
- (no CPE)range: 0

Patches

Vulnerability mechanics

References

www.vulncheck.com/advisories/advantech-webaccess-vpn-command-injection-in-appmanagementcontrollernvdThird Party Advisory
icr.advantech.com/download/softwarenvdProduct
icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdfnvdRelease Notes

News mentions

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