PatchTheCVECVE-2025-11786: Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2
CVE-2025-11786 is a critical-severity flaw (CVSS 9.8) affecting sge-plc1000 firmware, sge-plc50 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 69%) |
| CISA exploited list | No |
| Weakness | CWE-121 |
| Published | 2025-12-02 |
| Last modified | 2026-09-26 |
Last updated 2026-09-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-11786?
sge-plc1000 firmware: mitigate or apply the listed mitigation; sge-plc50 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-11786 being exploited?
CVE-2025-11786 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-11786 affect?
CVE-2025-11786 affects sge-plc1000 firmware, sge-plc50 firmware. Severity is critical (CVSS 9.8). 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 o
How urgent is CVE-2025-11786?
Priority 47/100. Critical severity; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2025-11779 CRITICAL 9.8 MITIGATE MITIGATE Stack-based buffer overflow vulnerability in CircutorSGE-PLC1000/SGE-PLC50 v9.0.2
- CVE-2025-11783 CRITICAL 9.8 MITIGATE MITIGATE Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2
- CVE-2025-11782 CRITICAL 9.8 MITIGATE MITIGATE Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2
- CVE-2025-11784 CRITICAL 9.8 MITIGATE MITIGATE Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2
- CVE-2025-11787 HIGH 8.8 MITIGATE MITIGATE Command injection vulnerability in the operating system in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 through the '