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  • OpenCode Systems OC Messaging and USSD Gateway

    From CISA Advisories@2:263/1 to All on Thu Mar 26 16:11:07 2026
    OpenCode Systems OC Messaging and USSD Gateway

    View CSAF
    Summary
    Successful exploitation of this vulnerability could allow an authenticated low-privileged user to gain access to SMS messages outside of their authorized tenant scope via a crafted company or tenant identifier parameter.
    The following versions of OpenCode Systems OC Messaging and USSD Gateway are affected:

    OC Messaging 6.32.2 (CVE-2025-70614)
    USSD Gateway 6.32.2 (CVE-2025-70614)





    CVSS
    Vendor
    Equipment
    Vulnerabilities




    v3 8.1
    OpenCode Systems
    OpenCode Systems OC Messaging and USSD Gateway
    Improper Access Control




    Background

    Critical Infrastructure Sectors: Communications
    Countries/Areas Deployed: Worldwide
    Company Headquarters Location: Bulgaria


    Vulnerabilities

    Expand All +

    CVE-2025-70614

    OpenCode Systems Custom Messaging Gateway 6.32.2 contains a web access vulnerability allowing one authenticated user to gain access to another authenticated user's messages via a crafted identifier parameter.
    View CVE Details

    Affected Products
    OpenCode Systems OC Messaging and USSD Gateway

    Vendor:OpenCode Systems
    Product Version:OpenCode Systems OC Messaging: 6.32.2, OpenCode Systems USSD Gateway: 6.32.2
    Product Status:known_affected


    Remediations
    MitigationThe vulnerability was identified by OpenCode Systems on January 5, 2026 and remediated on January 6, 2026 with the release of version 6.33.11.
    MitigationFor more information, contact OpenCode: https://opencode.com/about/contact-ushttps://opencode.com/about/contact-us

    Relevant CWE: CWE-284 Improper Access Control

    Metrics




    CVSS Version
    Base Score
    Base Severity
    Vector String




    3.1
    8.1
    HIGH
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N








    Acknowledgments

    Hussein Amer reported this vulnerability to 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 this vulnerability.
    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.
    CISA also recommends users take the following measures to protect themselves from social engineering attacks:
    Do not click web links or open attachments in unsolicited email messages.
    Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
    Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
    No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

    Revision History

    Initial Release Date: 2026-03-26




    Date
    Revision
    Summary




    2026-03-26
    1
    Initial Publication




    Legal Notice and Terms of Use

    https://www.cisa.gov/news-events/ics-advisories/icsa-26-085-02

    2026-03-26 12:00 UTC
    --- FMail-lnx 2.3.2.6-B20251227
    * Origin: TCOB1 A Mail Only System (2:263/1)