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    4 vulnerabilities by snap7_project

    CVE-2020-22552 (GCVE-0-2020-22552)

    Vulnerability from nvd – Published: 2020-10-28 13:51 – Updated: 2026-07-09 00:10
    VLAI
    Summary
    The Snap7 server component in version 1.4.1, when an attacker sends a crafted packet with COTP protocol the last-data-unit flag set to No and S7 writes a var function, the Snap7 server will be crashed.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2017-1000230 (GCVE-0-2017-1000230)

    Vulnerability from nvd – Published: 2017-11-17 21:00 – Updated: 2024-09-16 22:52
    VLAI
    Summary
    The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2020-22552 (GCVE-0-2020-22552)

    Vulnerability from cvelistv5 – Published: 2020-10-28 13:51 – Updated: 2026-07-09 00:10
    VLAI
    Summary
    The Snap7 server component in version 1.4.1, when an attacker sends a crafted packet with COTP protocol the last-data-unit flag set to No and S7 writes a var function, the Snap7 server will be crashed.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    References
    Show details on NVD website
    To clipboard 

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    CVE-2017-1000230 (GCVE-0-2017-1000230)

    Vulnerability from cvelistv5 – Published: 2017-11-17 21:00 – Updated: 2024-09-16 22:52
    VLAI
    Summary
    The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.
    Severity
    No CVSS data available.
    CWE
    • n/a
    Assigner
    References
    Show details on NVD website
    To clipboard 

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