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Vulnerability record · CVE-2025-11786 · published 2 December 2025

CVE-2025-11786: Circutor sge-plc1000 firmware stack-based buffer overflow vulnerability

Circutor · Sge Plc1000 Firmware

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'SetUserPassword()' function, the 'newPassword' parameter is directly embedded in a shell command string using 'sprintf()' without any sanitisation or validation, and then executed using 'system()'. This allows an attacker to inject arbitrary shell commands that will be executed with the same privileges as the application.

8.5 CVSS 4.0 High EPSS 0.37% · top 71.4% CWE-121 · Stack-based buffer overflow
8.5CVSS 4.0 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References
26 Sep 2026Last modified by NVD

Description

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'SetUserPassword()' function, the 'newPassword' parameter is directly embedded in a shell command string using 'sprintf()' without any sanitisation or validation, and then executed using 'system()'. This allows an attacker to inject arbitrary shell commands that will be executed with the same privileges as the application.

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-circutor-products-0 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-11778Circutor sge-plc1000 firmware heap-based buffer overflow vulnerabilityStack-based buffer overflow in Circutor SGE-PLC1000/SGE-PLC50 v0.9.2. This vulnerability allows an attacker to remotely exploit memory corruption thr…EPSS 0.35%9.8CVE-2021-33841Circutor sge-plc1000 firmware os command injection vulnerabilitySGE-PLC1000 device, in its 0.9.2b firmware version, does not handle some requests correctly, allowing a remote attacker to inject code into the opera…EPSS 2.2%9.4CVE-2025-11779Circutor sge-plc1000 firmware stack-based buffer overflow vulnerabilityStack-based buffer overflow vulnerability in CircutorSGE-PLC1000/SGE-PLC50 v9.0.2. The 'SetLan' function is invoked when a new configuration is appli…EPSS 1.3%8.8CVE-2021-33842Circutor sge-plc1000 firmware reliance on cookies without validation vulnerabilityImproper Authentication vulnerability in the cookie parameter of Circutor SGE-PLC1000 firmware version 0.9.2b allows an attacker to perform operation…EPSS 0.43%8.7CVE-2025-11780Circutor sge-plc1000 firmware classic buffer overflow vulnerabilityStack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'showMeterReport()' function, there is an unlimited user i…EPSS 0.33%8.6CVE-2025-11781Circutor sge-plc1000 firmware vulnerabilityUse of hardcoded cryptographic keys in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The affected firmware contains a hardcoded static authentication key. A…EPSS 0.14%8.5CVE-2025-11788Circutor sge-plc1000 firmware heap-based buffer overflow vulnerabilityHeap-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowSupervisorParameters()' function, there is an unlimite…EPSS 0.33%8.5CVE-2025-11785Circutor sge-plc1000 firmware stack-based buffer overflow vulnerabilityStack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterPasswords()' function, there is an unlimited use…EPSS 0.37%

Source: NIST National Vulnerability Database (record CVE-2025-11786), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.