A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload.
The product does not handle or incorrectly handles an exceptional condition.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios_xe | Cisco | 16.9.6 (including) | 16.9.6 (including) |
| Ios_xe | Cisco | 16.12.4 (including) | 16.12.4 (including) |
| Ios_xe | Cisco | 16.12.5 (including) | 16.12.5 (including) |
| Ios_xe | Cisco | 17.3.3 (including) | 17.3.3 (including) |