CVE-2025-14850: Advantech WebAccess/SCADA · Path Traversal
Affects Advantech WebAccess/SCADASource CVE Database V5
Not known to be exploited · CVSS 8.1 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.9% chance of exploitation in 30 days – higher than 60% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Advantech WebAccess/SCADA | Affected
| Fixed in– |
AI-suggested
1. Immediately restrict network access to Advantech WebAccess/SCADA systems using firewalls and network segmentation to limit exposure to trusted administrators only. 2. Implement strict access controls and least privilege principles to minimize the number of users with privileges required to exploit this vulnerability. 3. Monitor file system integrity with specialized tools to detect unauthorized file deletions or modifications promptly. 4. Regularly back up critical configuration and operational files to enable rapid recovery in case of file deletion. 5. Engage with Advantech support to obtain and apply official patches or workarounds as soon as they become available. 6. Conduct thorough security audits of SCADA environments to identify and remediate other potential input validation weaknesses. 7. Employ intrusion detection systems (IDS) tuned to detect anomalous file access patterns indicative of directory traversal attempts. 8. Train operational technology (OT) personnel on the risks and signs of exploitation related to this vulnerability to enhance incident response readiness.
Description
CVE-2025-14850 is a high-severity directory traversal vulnerability in Advantech WebAccess/SCADA version 9.2.1. It allows an attacker with limited privileges to delete arbitrary files on the affected system without user interaction. The vulnerability stems from improper input validation, enabling traversal outside intended directories. Exploitation can lead to significant integrity and availability impacts by removing critical files. Although no known exploits are currently reported in the wild, the vulnerability's network accessibility and low attack complexity make it a serious risk. European organizations using Advantech WebAccess/SCADA in industrial control environments should prioritize patching or applying mitigations. Countries with substantial industrial automation sectors and critical infrastructure relying on this product are at higher risk. Mitigation involves restricting access, applying vendor patches when available, and monitoring file system integrity closely.