CVE Feed

    Dashboard / CVE / CVE-2021-37186

    CVE-2021-37186

    A vulnerability has been identified in LOGO! CMR2020 (All versions < V2.2), LOGO! CMR2040 (All versions < V2.2), SIMATIC RTU3010C (All versions < V4.0.9), SIMATIC RTU3030C (All versions < V4.0.9), SIMATIC RTU3031C (All versions < V4.0.9), SIMATIC RTU3041C (All versions < V4.0.9). The underlying TCP/IP stack does not properly calculate the random numbers used as ISN (Initial Sequence Numbers). An adjacent attacker with network access to the LAN interface could interfere with traffic, spoof the connection and gain access to sensitive information.

    Published:Sep 14, 2021
    Last Modified:Nov 21, 2024
    EPS:Sep 14, 2021
    EPSS Score:0.00165
    CVSS Score:5.4

    Affected Products

    Vendor
    Siemens
    Product
    Logo\! Cmr2020
    Vendor
    Siemens
    Product
    Logo\! Cmr2020 Firmware
    Vendor
    Siemens
    Product
    Logo\! Cmr2040
    Vendor
    Siemens
    Product
    Logo\! Cmr2040 Firmware
    Vendor
    Siemens
    Product
    Simatic Rtu3010c
    Vendor
    Siemens
    Product
    Simatic Rtu3010c Firmware
    Vendor
    Siemens
    Product
    Simatic Rtu3030c
    Vendor
    Siemens
    Product
    Simatic Rtu3030c Firmware
    Vendor
    Siemens
    Product
    Simatic Rtu3031c
    Vendor
    Siemens
    Product
    Simatic Rtu3031c Firmware
    Vendor
    Siemens
    Product
    Simatic Rtu3041c
    Vendor
    Siemens
    Product
    Simatic Rtu3041c Firmware

    Exploits

    No exploit reference

    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