Description
A security issue exists due to improper handling of malformed CIP Forward Close packets during fuzzing. The controller enters a solid red Fault LED state and becomes unresponsive. Upon power cycle, the controller will enter recoverable fault where the MS LED and Fault LED become flashing red and reports fault code 0xF015. To recover, clear the fault.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Rockwell Automation | PLC - Micro850 L50E | V20.011 - V22.011 | — |
Advisories 1
- ICSA-25-226-25 Rockwell Automation Micro800 CISA ICS & IT advisories · Aug 14, 2025