Critical · published December 2, 2025
⚡ A sneaky buffer overflow is at play! The Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 lets attackers overflow a fixed-size buffer with unlimited user input—yikes! 🔥 Think of it like a coffee shop trying to fit an endless line of customers into a small waiting area. Eventually, more and more customers will spill out, causing chaos all around! An attacker could exploit this flaw to crash the system, or even worse, execute arbitrary code. This means they could potentially take control of the device and manipulate its operations—leaving you and your systems vulnerable to malicious actions!
Think of it like a coffee shop trying to fit an endless line of customers into a small waiting area. Eventually, more and more customers will spill out, causing chaos all around! This vulnerability arises from a heap-based buffer overflow in the 'ShowSupervisorParameters()' function, where user input for the 'meter' parameter is copied into a fixed-size buffer using 'sprintf()' without proper size validation. This allows for an excessively large input to overflow the buffer.
An attacker could exploit this flaw to crash the system, or even worse, execute arbitrary code. This means they could potentially take control of the device and manipulate its operations—leaving you and your systems vulnerable to malicious actions! To mitigate this risk, immediately update to a patched version of Circutor firmware. Additionally, validate all user inputs rigorously to ensure they fit within expected bounds and consider implementing stricter memory management practices. You've got this! Secure your systems, and you'll be a security hero in no time! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| circutor/sge-plc1000_firmware | all versions | — |
| circutor/sge-plc50_firmware | all versions | — |