Description
When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Beckhoff | TwinCAT 2 | 2304 – ≤ 2304 | — |
| Beckhoff | TwinCAT 3.1 | 4204.0 – ≤ 4204.0 | — |