Cisco 600 series routers running CBOS 2.0.1 through 2.4.2ap allows remote attackers to cause a denial of service via multiple connections to the router on the (1) HTTP or (2) telnet service, which causes the router to become unresponsive and stop forwarding packets.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Cbos | Cisco | 2.0.1 | 2.0.1 |
| Cbos | Cisco | 2.1.0 | 2.1.0 |
| Cbos | Cisco | 2.1.0a | 2.1.0a |
| Cbos | Cisco | 2.2.0 | 2.2.0 |
| Cbos | Cisco | 2.2.1 | 2.2.1 |
| Cbos | Cisco | 2.2.1a | 2.2.1a |
| Cbos | Cisco | 2.3 | 2.3 |
| Cbos | Cisco | 2.3.2 | 2.3.2 |
| Cbos | Cisco | 2.3.5 | 2.3.5 |
| Cbos | Cisco | 2.3.7 | 2.3.7 |
| Cbos | Cisco | 2.3.8 | 2.3.8 |
| Cbos | Cisco | 2.3.9 | 2.3.9 |
| Cbos | Cisco | 2.4.1 | 2.4.1 |
| Cbos | Cisco | 2.4.2 | 2.4.2 |
| Cbos | Cisco | * | 2.4.2ap |