CVE-2025-34238

MEDIUM

Advantech Webaccess/vpn < 1.1.5 - Path Traversal

Title source: rule

Description

Advantech WebAccess/VPN versions prior to 1.1.5 contain an absolute path traversal via AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction() that allows an authenticated network administrator to cause the application to read and return the contents of arbitrary files the web user (www-data) can access.

References (3)

[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-path-traversal-via-ajaxstandalonevpnclientscontroller

Scores

CVSS v3 6.5

EPSS 0.0007

EPSS Percentile 21.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Classification

CWE

CWE-22

Status published

Affected Products (1)

advantech/webaccess\/vpn < 1.1.5

Timeline

Published Nov 06, 2025

Tracked Since Feb 18, 2026