Buffer overflow in Circutor Sge-Plc1000
CVE-2025-11786
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.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (25.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Circutor Sge-plc1000
- Circutor Sge-plc1000_firmware — versions 9.0.2
- Circutor Sge-plc50
- Circutor Sge-plc50_firmware — versions 9.0.2
- Sge-plc1000 Sge-plc50 Circutor — versions 9.0.2
Weakness classification (CWE)
References
- cve-coordination@incibe.es (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-11786?
- CVE-2025-11786 is a critical-severity vulnerability in Circutor Sge-Plc1000, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-12-02.
- How severe is CVE-2025-11786?
- Critical severity. CVSS v3 base score is 9.8 out of 10.