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    CVE-2021-20093

    A buffer over-read vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to disclose heap memory contents or crash the CodeMeter Runtime Server.

    Published:Jun 16, 2021
    Last Modified:Nov 21, 2024
    EPS:Jun 16, 2021
    EPSS Score:0.08527
    CVSS Score:9.1

    Affected Products

    Vendor
    Siemens
    Product
    Pss Cape
    Vendor
    Siemens
    Product
    Sicam 230
    Vendor
    Siemens
    Product
    Sicam 230 Firmware
    Vendor
    Siemens
    Product
    Simatic Information Server
    Vendor
    Siemens
    Product
    Simatic Pcs Neo
    Vendor
    Siemens
    Product
    Simatic Process Historian
    Vendor
    Siemens
    Product
    Simatic Wincc Oa
    Vendor
    Siemens
    Product
    Simit Simulation Platform
    Vendor
    Siemens
    Product
    Sinec Infrastructure Network Services
    Vendor
    Siemens
    Product
    Sinema Remote Connect Server
    Vendor
    Wibu
    Product
    Codemeter

    Exploits

    https://www.tenable.com/security/research/tra-2021-24https://www.tenable.com/security/research/tra-2021-24

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    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