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    CVE-2021-27395

    A vulnerability has been identified in SIMATIC Process Historian 2013 and earlier (All versions), SIMATIC Process Historian 2014 (All versions < SP3 Update 6), SIMATIC Process Historian 2019 (All versions), SIMATIC Process Historian 2020 (All versions). An interface in the software that is used for critical functionalities lacks authentication, which could allow a malicious user to maliciously insert, modify or delete data.

    Published:Oct 12, 2021
    Last Modified:Nov 21, 2024
    EPS:Oct 12, 2021
    EPSS Score:0.00248
    CVSS Score:8.1

    Affected Products

    Vendor
    Siemens
    Product
    Simatic Process Historian 2013
    Vendor
    Siemens
    Product
    Simatic Process Historian 2014
    Vendor
    Siemens
    Product
    Simatic Process Historian 2019
    Vendor
    Siemens
    Product
    Simatic Process Historian 2020

    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