CVE-2025-11779: Stack-based buffer overflow vulnerability in CircutorSGE-PLC1000/SGE-PLC50 v9.0.2. The 'SetLan' function is invoked when a new configuration

CVE-2025-11779 · Severity: critical · CVSS 9.8 · Published 2025-12-02

Technologies: Circutor Sge-Plc50, Circutor Sge-Plc50 Firmware, Circutor Sge-Plc1000 Firmware, Circutor Sge-Plc1000. Vendors: Circutor.

Executive brief

Stack-based buffer overflow vulnerability in CircutorSGE-PLC1000/SGE-PLC50 v9.0.2. The 'SetLan' function is invoked when a new configuration is applied. This new configuration function is activated by a management web request, which can be invoked by a user when making changes to the 'index.cgi' web application. The parameters are not being sanitised, which could lead to command injection.

Affected products

circutor sge-plc50
circutor sge-plc50_firmware
circutor sge-plc1000_firmware
circutor sge-plc1000

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