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  • EnOcean SmartServer IoT

    From CISA Advisories@2:263/1 to All on Thu Feb 19 18:11:05 2026
    EnOcean SmartServer IoT

    View CSAF
    Summary
    Successful exploitation of these vulnerabilities could allow an attacker to remotely execute arbitrary code and bypass ASLR.
    The following versions of EnOcean SmartServer IoT are affected:

    SmartServer IoT <=4.60.009 (CVE-2026-20761, CVE-2026-22885)





    CVSS
    Vendor
    Equipment
    Vulnerabilities




    v3 8.1
    EnOcean Edge Inc
    EnOcean SmartServer IoT
    Improper Neutralization of Special Elements used in a Command ('Command Injection'), Out-of-bounds Read




    Background

    Critical Infrastructure Sectors: Information Technology
    Countries/Areas Deployed: Worldwide
    Company Headquarters Location: United States


    Vulnerabilities

    Expand All +

    CVE-2026-20761

    A vulnerability exists in EnOcean SmartServer IoT version 4.60.009 and prior, which would allow remote attackers, in the LON IP-852 management messages, to send specially crafted IP-852 messages resulting in arbitrary OS command execution on the device.
    View CVE Details

    Affected Products
    EnOcean SmartServer IoT

    Vendor:EnOcean Edge Inc
    Product Version:EnOcean Edge Inc SmartServer IoT: <=4.60.009
    Product Status:known_affected


    Remediations
    MitigationEnOcean recommends users update the SmartServer platform software to SmartServer 4.6 Update 2 (v4.60.023) or a later release at https://enoceanwiki.atlassian.net/wiki/spaces/DrftSSIoT/pages/1475410/SmartServer+IoT+Release+Notes#Current-Stable-Release.For additional mitigations and workarounds, refer to EnOcean's hardening guide at https://enoceanwiki.atlassian.net/wiki/spaces/IEC/pages/288063529/Enhancing+Security.

    Relevant CWE: CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

    Metrics




    CVSS Version
    Base Score
    Base Severity
    Vector String




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







    CVE-2026-22885

    A vulnerability exists in EnOcean SmartServer IoT version 4.60.009 and prior, which would allow remote attackers, in the LON IP-852 management messages, to send specially crafted IP-852 messages resulting in a memory leak from the program's memory.
    View CVE Details

    Affected Products
    EnOcean SmartServer IoT

    Vendor:EnOcean Edge Inc
    Product Version:EnOcean Edge Inc SmartServer IoT: <=4.60.009
    Product Status:known_affected


    Remediations
    MitigationEnOcean recommends users update the SmartServer platform software to SmartServer 4.6 Update 2 (v4.60.023) or a later release at https://enoceanwiki.atlassian.net/wiki/spaces/DrftSSIoT/pages/1475410/SmartServer+IoT+Release+Notes#Current-Stable-Release.For additional mitigations and workarounds, refer to EnOcean's hardening guide at https://enoceanwiki.atlassian.net/wiki/spaces/IEC/pages/288063529/Enhancing+Security.

    Relevant CWE: CWE-125 Out-of-bounds Read

    Metrics




    CVSS Version
    Base Score
    Base Severity
    Vector String




    3.1
    3.7
    LOW
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N








    Acknowledgments

    Amir Zaltzman of Claroty Team82 reported these vulnerabilities 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 these vulnerabilities, 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.
    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 these vulnerabilities has been reported to CISA at this time. These vulnerabilities have a high attack complexity.

    Revision History

    Initial Release Date: 2026-02-19




    Date
    Revision
    Summary




    2026-02-19
    1
    Initial Publication




    Legal Notice and Terms of Use

    https://www.cisa.gov/news-events/ics-advisories/icsa-26-050-01

    2026-02-19 12:00 UTC
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