FURUNO FA-50 Class B AIS Transponder
Summary
Successful exploitation of these vulnerabilities could allow an attacker to alter device settings.
The following versions of FURUNO FA-50 Class B AIS Transponder are affected:
- FURUNO FA-50 Class B AIS Transponder vers:all/*
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.1 | FURUNO ELECTRIC CO.,LTD. | FURUNO FA-50 Class B AIS Transponder | Use of Hard-coded Credentials, Missing Authentication for Critical Function |
Background
- Critical Infrastructure Sectors: Transportation Systems
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Japan
Vulnerabilities
CVE-2026-59769
An attacker, who knows the credentials and has access to the in-vessel network to which the device is connected to, may operate the settings screen using that credentials to alter the settings of the device.
Affected Products
FURUNO FA-50 Class B AIS Transponder
FURUNO ELECTRIC CO.,LTD.
FURUNO FA-50 Class B AIS Transponder: vers:all/*
known_affected
Remediations
Mitigation
FURUNO ELECTRIC CO.,LTD. notes that production of this product ended in October 2020, and software updates will no longer be provided. FURUNO recommends users do not connect the product directly to the internet. To prevent unauthorized access, the vessel on which the product is installed should be properly locked and managed.
Relevant CWE: CWE-798 Use of Hard-coded Credentials
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 9.1 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| 4.0 | 8.8 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N |
CVE-2026-67578
Some configurations may be changed on the management screen without authentication.
Affected Products
FURUNO FA-50 Class B AIS Transponder
FURUNO ELECTRIC CO.,LTD.
FURUNO FA-50 Class B AIS Transponder: vers:all/*
known_affected
Remediations
Mitigation
FURUNO ELECTRIC CO.,LTD. notes that production of this product ended in October 2020, and software updates will no longer be provided. FURUNO recommends users do not connect the product directly to the internet. To prevent unauthorized access, the vessel on which the product is installed should be properly locked and managed.
Relevant CWE: CWE-306 Missing Authentication for Critical Function
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 4.0 | 8.7 | HIGH | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
Acknowledgments
- Souvik Kandar reported these vulnerabilities to CISA
- JPCERT/CC coordinated with Furuno Electric and CISA
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification and this Privacy & Use policy (https://www.cisa.gov/privacy-policy
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.
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 these vulnerabilities has been reported to CISA at this time.
Revision History
- Initial Release Date: 2026-08-25
| Date | Revision | Summary |
|---|---|---|
| 2026-08-25 | 1 | Initial Publication |
Legal Notice and Terms of Use
This product is provided subject to this Notification and this Privacy & Use policy.