Description
An authorization bypass vulnerability has been discovered in the Click Plus C2-03CPU2 device firmware version 3.60. Through the KOPR protocol utilized by the Remote PLC application, authenticated users with low-level access permissions can exploit this vulnerability to read and modify PLC variables beyond their intended authorization level.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware | < v3.71 | v3.71 |
| AutomationDirect | CLICK PLUS C0-1x CPU firmware | < v3.71 | v3.71 |
| AutomationDirect | CLICK PLUS C2-x CPU firmware | < v3.71 | v3.71 |
Advisories 1
- ICSA-25-266-01 AutomationDirect CLICK PLUS CISA ICS & IT advisories · Sep 23, 2025