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
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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.
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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
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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.