CVE-2019-6821

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    CVE-2019-6821

    Published: 22 May 2019Last Modified: 10 Mar 2026

    Summary:

    Details: CWE-330: Use of Insufficiently Random Values vulnerability, which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum.

    References: , http://www.securityfocus.com/bid/108366, https://ics-cert.us-cert.gov/advisories/ICSA-19-136-01, https://www.schneider-electric.com/en/download/document/SEVD-2019-134-03/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High