CVE-2025-11786
CWE-121Published: December 2, 2025· Updated: Jun 17, 2026
Official 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.
Risk Analysis
This critical stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 allows an attacker to inject arbitrary shell commands. With a CVSS score of 9.8, this flaw is highly severe and could lead to remote code execution with the same privileges as the application, resulting in complete system compromise. The absence of an EPSS score means there is no current data on its exploitation likelihood, but its critical severity warrants immediate attention.
No public exploit is currently known for this vulnerability. Its network-exploitable nature and low attack complexity suggest that a working exploit could be developed and used remotely without user interaction.
Users of Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 should update to a patched version as soon as one is available. Implementing robust input sanitization and validation for user-supplied parameters is crucial to prevent command injection.
Technical Analysis
CVE-2025-11786 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (1)
Quick Facts
Related CVEs (CWE-121)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-11786 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts