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  • FURUNO FA-50 Class B AIS Transponder

    From Cisa Advisories@2:263/1 to All on Tue Aug 25 20:33:06 2026
    FURUNO FA-50 Class B AIS Transponder

    View CSAF
    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

    Expand All +

    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. View CVE Details

    Affected Products
    FURUNO FA-50 Class B AIS Transponder

    Vendor:FURUNO ELECTRIC CO.,LTD.
    Product Version:FURUNO FA-50 Class B AIS Transponder: vers:all/* Product Status:known_affected


    Remediations
    MitigationFURUNO 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.
    View CVE Details

    Affected Products
    FURUNO FA-50 Class B AIS Transponder

    Vendor:FURUNO ELECTRIC CO.,LTD.
    Product Version:FURUNO FA-50 Class B AIS Transponder: vers:all/* Product Status:known_affected


    Remediations
    MitigationFURUNO 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

    https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-07

    2026-08-25 12:00 UTC

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    * Origin: LISTS. from TCOB1 READ ONLY (2:263/1)