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    CVE-2025-55038

    An authorization bypass vulnerability has been discovered in the Click Plus C2-03CPU2 device firmware version 3.60. Through the KOPR protocol utilized by the Remote PLC application, authenticated users with low-level access permissions can exploit this vulnerability to read and modify PLC variables beyond their intended authorization level.

    Published:Sep 23, 2025
    Last Modified:Apr 15, 2026
    EPS:Sep 23, 2025
    EPSS Score:0.00027
    CVSS Score:6.8

    Affected Products

    Vendor
    Automationdirect
    Product
    Click Plus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2025-57882 (CVSS 8.2) — An improper resource shutdown or release vulnerability has been identified in the Click Plus C2-03CPU-2 device…
    CVE-2025-58473 (CVSS 8.2) — An improper resource shutdown or release vulnerability has been identified in the Click Plus C2-03CPU-2 device…
    CVE-2025-55069 (CVSS 8.7) — A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.6…
    CVE-2025-59484 (CVSS 8.7) — The use of a broken or risky cryptographic algorithm was discovered in firmware version 3.60 of the Click Plus…
    CVE-2025-58069 (CVSS 6.9) — The use of a hard-coded cryptographic key was discovered in firmware version 3.60 of the Click Plus PLC. The v…
    CVE-2025-54855 (CVSS 4.1) — Cleartext storage of sensitive information was discovered in Click Programming Software version v3.60. The vul…

    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