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PatchSiren cyber security CVE debrief

CVE-2025-14848 Advantech CVE debrief

A directory traversal vulnerability in Advantech WebAccess/SCADA allows authenticated attackers to determine the existence of arbitrary files on affected systems. The vulnerability, published December 18, 2025, carries a CVSS 3.1 score of 4.3 (MEDIUM). The issue stems from improper path validation that permits absolute directory traversal, enabling file existence enumeration rather than full content disclosure. Advantech has released version 9.2.2 to address this vulnerability. Organizations should prioritize patching, particularly for internet-facing SCADA installations where lateral movement and further reconnaissance could follow initial file enumeration.

Vendor
Advantech
Product
WebAccess/SCADA
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2025-12-18
Original CVE updated
2025-12-18
Advisory published
2025-12-18
Advisory updated
2025-12-18

Who should care

Industrial control system operators, critical infrastructure security teams, OT network defenders, and organizations running Advantech WebAccess/SCADA in manufacturing, energy, water treatment, or building automation environments

Technical summary

The vulnerability exists in Advantech WebAccess/SCADA's handling of file paths, where insufficient validation allows absolute directory traversal sequences. An attacker with low privileges can manipulate file path parameters to probe for file existence outside intended directories. This information disclosure primitive can support reconnaissance for further attacks, though the CVSS scoring indicates no integrity or availability impact. The attack requires network access and valid credentials but no user interaction, making it suitable for automated scanning once authentication is obtained.

Defensive priority

medium

Recommended defensive actions

  • Upgrade to Advantech WebAccess/SCADA version 9.2.2 or later
  • Restrict network access to SCADA systems using firewall rules and network segmentation
  • Monitor for anomalous file access patterns in WebAccess/SCADA logs
  • Apply principle of least privilege to SCADA user accounts
  • Review and harden WebAccess/SCADA configuration against path traversal patterns

Evidence notes

CISA ICS advisory ICSA-25-352-06 confirms the vulnerability affects WebAccess/SCADA and identifies version 9.2.2 as the remediation. The CVSS vector indicates network attack vector with low attack complexity and low privileges required, suggesting exploitation is straightforward for authenticated attackers.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-14848 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-14848

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-14848 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-14848

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-352-06.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-352-06

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.