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    CVE-2020-22552

    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.

    Published:Oct 28, 2020
    Last Modified:Nov 21, 2024
    EPS:Oct 28, 2020
    EPSS Score:0.00156
    CVSS Score:7.5

    Affected Products

    Vendor
    Snap7 Project
    Product
    Snap7

    Exploits

    https://sourceforge.net/projects/snap7/https://sourceforge.net/projects/snap7/

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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