The Kerlink firewall in ChirpStack chirpstack-mqtt-forwarder before 4.2.1 and chirpstack-gateway-bridge before 4.0.11 wrongly accepts certain TCP packets when a connection is not in the ESTABLISHED state.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gateway_bridge | Chirpstack | * | 4.0.11 (excluding) |
| Mqtt_forwarder | Chirpstack | * | 4.2.1 (excluding) |