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    CVE-2021-45117

    The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

    Published:Mar 21, 2022
    Last Modified:Nov 21, 2024
    EPS:Mar 21, 2022
    EPSS Score:0.00457
    CVSS Score:6.5

    Affected Products

    Vendor
    Opcfoundation
    Product
    Ua-nodeset
    Vendor
    Siemens
    Product
    Simatic Net Pc
    Vendor
    Siemens
    Product
    Sitop Manager
    Vendor
    Siemens
    Product
    Telecontrol Server Basic

    Exploits

    https://www.youtube.com/watch?v=qv-RBdCaV4khttps://www.youtube.com/watch?v=qv-RBdCaV4k

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    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