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1. EXECUTIVE SUMMARY
- CVSS v4 9.2
- ATTENTION: Exploitable remotely/Low attack complexity
- Vendor: Dover Fueling Solutions
- Equipment: ProGauge MagLink LX consoles
- Vulnerability: Missing Authentication for Critical Function
2. RISK EVALUATION
Successful exploitation of this vulnerability could result in an attacker gaining control of the monitoring device, manipulating fueling operations, deleting system configurations, or deploying malware.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of ProGauge MagLink LX, a fuel and water tank monitor, are affected:
- ProGauge MagLink LX 4: Versions prior to 4.20.3
- ProGauge MagLink LX Plus: Versions prior to 4.20.3
- ProGauge MagLink LX Ultimate: Versions prior to 5.20.3
3.2 VULNERABILITY OVERVIEW
3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306
The device exposes an undocumented and unauthenticated Target Communication Framework (TCF) interface on a specific port. Files can be created, deleted, or modified, potentially leading to remote code execution.
CVE-2025-5310 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2025-5310. A base score of 9.2 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
3.3 BACKGROUND
- CRITICAL INFRASTRUCTURE SECTORS: Transportation Systems
- COUNTRIES/AREAS DEPLOYED: Worldwide
- COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Souvik Kandar of Microsec (microsec.io) reported this vulnerability to CISA.
4. MITIGATIONS
Dover Fueling Solutions recommends users update their ProGauge MagLink devices to Version 4.20.3 or later for MagLink LX 4 and MagLink LX Plus models. The upgrade can be downloaded from the Dover Fueling Solutions website.
For MagLink LX Ultimate devices, Dover Fueling Solutions recommends users update to version 5.20.3 or later.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
- Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
- Locate control system networks and remote devices behind firewalls and isolating them from business networks.
- When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
5. UPDATE HISTORY
- June 17, 2025: Initial Publication