---
id: CVE-2025-11786
title: >-
  Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50
  v9.0.2
summary: >-
  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
  sanitisatio…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-121
vendor: circutor
product: sge-plc1000_firmware
affected:
  - sge-plc1000_firmware = 9.0.2
  - sge-plc50_firmware = 9.0.2
published: '2025-12-02'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T00:10:00.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11786'
references:
  - url: >-
      https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-circutor-products-0
    label: cve-coordination@incibe.es
tags:
  - nvd
epss: 0.00372
epssPercentile: 0.28476
ingestedAt: '2026-09-26T00:22:40.000Z'
---

## Overview

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.

## Affected

- `sge-plc1000_firmware = 9.0.2`
- `sge-plc50_firmware = 9.0.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.