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    CVE-2025-11781

    Use of hardcoded cryptographic keys in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The affected firmware contains a hardcoded static authentication key. An attacker with local access to the device can extract this key (e.g., by analysing the firmware image or memory dump) and create valid firmware update packages. This bypasses all intended access controls and grants full administrative privileges.

    Published:Dec 2, 2025
    Last Modified:Dec 3, 2025
    EPS:Dec 2, 2025
    EPSS Score:0.00019
    CVSS Score:7.8

    Affected Products

    Vendor
    Circutor
    Product
    Sge-plc1000
    Vendor
    Circutor
    Product
    Sge-plc1000 Firmware
    Vendor
    Circutor
    Product
    Sge-plc50
    Vendor
    Circutor
    Product
    Sge-plc50 Firmware
    Vendor
    Sge-plc1000 Sge-plc50
    Product
    Circutor

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-11789 (CVSS 7.1) — Out-of-bounds read vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'DownloadFile' function convert…
    CVE-2025-11788 (CVSS 8.5) — Heap-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowSupervisorParam…
    CVE-2025-11787 (CVSS 8.5) — Command injection vulnerability in the operating system in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 through the '…
    CVE-2025-11786 (CVSS 8.5) — Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'SetUserPassword()'…
    CVE-2025-11785 (CVSS 8.5) — Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterPasswords…
    CVE-2025-11784 (CVSS 8.5) — Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterDatabase(…
    CVE-2025-11783 (CVSS 8.5) — Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The vulnerability is found…
    CVE-2025-11782 (CVSS 8.5) — Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'ShowDownload()' funct…
    CVE-2025-11780 (CVSS 8.7) — Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'showMeterReport()'…
    CVE-2025-11779 (CVSS 9.4) — Stack-based buffer overflow vulnerability in CircutorSGE-PLC1000/SGE-PLC50 v9.0.2. The 'SetLan' function is in…

    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