A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent wireless attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of IPv6 network requests from an associated wireless IPv6 client to an affected device. To associate a client to a device, an attacker may first need to authenticate to the network, or associate freely in the case of a configured open network. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to stop responding, resulting in a DoS condition.
2025-05-07T18:15:36.640
2025-07-31T16:56:47.507
Analyzed
CVSSv3.1: 7.4 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xe | 16.4.1 | Yes |
| Operating System | cisco | ios_xe | 16.4.2 | Yes |
| Operating System | cisco | ios_xe | 16.4.3 | Yes |
| Operating System | cisco | ios_xe | 16.5.1 | Yes |
| Operating System | cisco | ios_xe | 16.5.1a | Yes |
| Operating System | cisco | ios_xe | 16.5.1b | Yes |
| Operating System | cisco | ios_xe | 16.5.2 | Yes |
| Operating System | cisco | ios_xe | 16.5.3 | Yes |
| Operating System | cisco | ios_xe | 16.6.1 | Yes |
| Operating System | cisco | ios_xe | 16.6.2 | Yes |
| Operating System | cisco | ios_xe | 16.6.3 | Yes |
| Operating System | cisco | ios_xe | 16.6.4 | Yes |
| Operating System | cisco | ios_xe | 16.6.4a | Yes |
| Operating System | cisco | ios_xe | 16.6.5 | Yes |
| Operating System | cisco | ios_xe | 16.6.5a | Yes |
| Operating System | cisco | ios_xe | 16.6.6 | Yes |
| Operating System | cisco | ios_xe | 16.6.7 | Yes |
| Operating System | cisco | ios_xe | 16.6.8 | Yes |
| Operating System | cisco | ios_xe | 16.6.9 | Yes |
| Operating System | cisco | ios_xe | 16.6.10 | Yes |
| Operating System | cisco | ios_xe | 16.7.1 | Yes |
| Operating System | cisco | ios_xe | 16.7.1a | Yes |
| Operating System | cisco | ios_xe | 16.7.1b | Yes |
| Operating System | cisco | ios_xe | 16.7.2 | Yes |
| Operating System | cisco | ios_xe | 16.7.3 | Yes |
| Operating System | cisco | ios_xe | 16.7.4 | Yes |
| Operating System | cisco | ios_xe | 16.8.1 | Yes |
| Operating System | cisco | ios_xe | 16.8.1a | Yes |
| Operating System | cisco | ios_xe | 16.8.1b | Yes |
| Operating System | cisco | ios_xe | 16.8.1c | Yes |
| Operating System | cisco | ios_xe | 16.8.1d | Yes |
| Operating System | cisco | ios_xe | 16.8.1e | Yes |
| Operating System | cisco | ios_xe | 16.8.1s | Yes |
| Operating System | cisco | ios_xe | 16.8.2 | Yes |
| Operating System | cisco | ios_xe | 16.8.3 | Yes |
| Operating System | cisco | ios_xe | 16.9.1 | Yes |
| Operating System | cisco | ios_xe | 16.9.1a | Yes |
| Operating System | cisco | ios_xe | 16.9.1b | Yes |
| Operating System | cisco | ios_xe | 16.9.1s | Yes |
| Operating System | cisco | ios_xe | 16.9.2 | Yes |
| Operating System | cisco | ios_xe | 16.9.3 | Yes |
| Operating System | cisco | ios_xe | 16.9.3a | Yes |
| Operating System | cisco | ios_xe | 16.9.4 | Yes |
| Operating System | cisco | ios_xe | 16.9.5 | Yes |
| Operating System | cisco | ios_xe | 16.9.5f | Yes |
| Operating System | cisco | ios_xe | 16.9.6 | Yes |
| Operating System | cisco | ios_xe | 16.9.7 | Yes |
| Operating System | cisco | ios_xe | 16.9.8 | Yes |
| Operating System | cisco | ios_xe | 16.10.1 | Yes |
| Operating System | cisco | ios_xe | 16.10.1a | Yes |
| Operating System | cisco | ios_xe | 16.10.1b | Yes |
| Operating System | cisco | ios_xe | 16.10.1c | Yes |
| Operating System | cisco | ios_xe | 16.10.1d | Yes |
| Operating System | cisco | ios_xe | 16.10.1e | Yes |
| Operating System | cisco | ios_xe | 16.10.1f | Yes |
| Operating System | cisco | ios_xe | 16.10.1g | Yes |
| Operating System | cisco | ios_xe | 16.10.1s | Yes |
| Operating System | cisco | ios_xe | 16.10.2 | Yes |
| Operating System | cisco | ios_xe | 16.10.3 | Yes |
| Operating System | cisco | ios_xe | 16.11.1 | Yes |
| Operating System | cisco | ios_xe | 16.11.1a | Yes |
| Operating System | cisco | ios_xe | 16.11.1b | Yes |
| Operating System | cisco | ios_xe | 16.11.1s | Yes |
| Operating System | cisco | ios_xe | 16.11.2 | Yes |
| Operating System | cisco | ios_xe | 16.12.1 | Yes |
| Operating System | cisco | ios_xe | 16.12.1a | Yes |
| Operating System | cisco | ios_xe | 16.12.1c | Yes |
| Operating System | cisco | ios_xe | 16.12.1s | Yes |
| Operating System | cisco | ios_xe | 16.12.1t | Yes |
| Operating System | cisco | ios_xe | 16.12.1w | Yes |
| Operating System | cisco | ios_xe | 16.12.1x | Yes |
| Operating System | cisco | ios_xe | 16.12.1y | Yes |
| Operating System | cisco | ios_xe | 16.12.1z1 | Yes |
| Operating System | cisco | ios_xe | 16.12.1z2 | Yes |
| Operating System | cisco | ios_xe | 16.12.2 | Yes |
| Operating System | cisco | ios_xe | 16.12.2a | Yes |
| Operating System | cisco | ios_xe | 16.12.2s | Yes |
| Operating System | cisco | ios_xe | 16.12.3 | Yes |
| Operating System | cisco | ios_xe | 16.12.3a | Yes |
| Operating System | cisco | ios_xe | 16.12.3s | Yes |
| Operating System | cisco | ios_xe | 16.12.4 | Yes |
| Operating System | cisco | ios_xe | 16.12.4a | Yes |
| Operating System | cisco | ios_xe | 16.12.5 | Yes |
| Operating System | cisco | ios_xe | 16.12.5a | Yes |
| Operating System | cisco | ios_xe | 16.12.5b | Yes |
| Operating System | cisco | ios_xe | 16.12.6 | Yes |
| Operating System | cisco | ios_xe | 16.12.6a | Yes |
| Operating System | cisco | ios_xe | 16.12.7 | Yes |
| Operating System | cisco | ios_xe | 16.12.8 | Yes |
| Operating System | cisco | ios_xe | 16.12.9 | Yes |
| Operating System | cisco | ios_xe | 16.12.10 | Yes |
| Operating System | cisco | ios_xe | 16.12.10a | Yes |
| Operating System | cisco | ios_xe | 16.12.11 | Yes |
| Operating System | cisco | ios_xe | 16.12.12 | Yes |
| Operating System | cisco | ios_xe | 17.1.1 | Yes |
| Operating System | cisco | ios_xe | 17.1.1a | Yes |
| Operating System | cisco | ios_xe | 17.1.1s | Yes |
| Operating System | cisco | ios_xe | 17.1.1t | Yes |
| Operating System | cisco | ios_xe | 17.1.3 | Yes |
| Operating System | cisco | ios_xe | 17.2.1 | Yes |
| Operating System | cisco | ios_xe | 17.2.1a | Yes |
| Operating System | cisco | ios_xe | 17.2.1r | Yes |
| Operating System | cisco | ios_xe | 17.2.1v | Yes |
| Operating System | cisco | ios_xe | 17.2.2 | Yes |
| Operating System | cisco | ios_xe | 17.2.3 | Yes |
| Operating System | cisco | ios_xe | 17.3.1 | Yes |
| Operating System | cisco | ios_xe | 17.3.1a | Yes |
| Operating System | cisco | ios_xe | 17.3.1w | Yes |
| Operating System | cisco | ios_xe | 17.3.1x | Yes |
| Operating System | cisco | ios_xe | 17.3.1z | Yes |
| Operating System | cisco | ios_xe | 17.3.2 | Yes |
| Operating System | cisco | ios_xe | 17.3.2a | Yes |
| Operating System | cisco | ios_xe | 17.3.3 | Yes |
| Operating System | cisco | ios_xe | 17.3.4 | Yes |
| Operating System | cisco | ios_xe | 17.3.4a | Yes |
| Operating System | cisco | ios_xe | 17.3.4b | Yes |
| Operating System | cisco | ios_xe | 17.3.4c | Yes |
| Operating System | cisco | ios_xe | 17.3.5 | Yes |
| Operating System | cisco | ios_xe | 17.3.5a | Yes |
| Operating System | cisco | ios_xe | 17.3.5b | Yes |
| Operating System | cisco | ios_xe | 17.3.6 | Yes |
| Operating System | cisco | ios_xe | 17.3.7 | Yes |
| Operating System | cisco | ios_xe | 17.3.8 | Yes |
| Operating System | cisco | ios_xe | 17.3.8a | Yes |
| Operating System | cisco | ios_xe | 17.4.1 | Yes |
| Operating System | cisco | ios_xe | 17.4.1a | Yes |
| Operating System | cisco | ios_xe | 17.4.1b | Yes |
| Operating System | cisco | ios_xe | 17.4.2 | Yes |
| Operating System | cisco | ios_xe | 17.4.2a | Yes |
| Operating System | cisco | ios_xe | 17.5.1 | Yes |
| Operating System | cisco | ios_xe | 17.5.1a | Yes |
| Operating System | cisco | ios_xe | 17.6.1 | Yes |
| Operating System | cisco | ios_xe | 17.6.1a | Yes |
| Operating System | cisco | ios_xe | 17.6.1w | Yes |
| Operating System | cisco | ios_xe | 17.6.1x | Yes |
| Operating System | cisco | ios_xe | 17.6.1y | Yes |
| Operating System | cisco | ios_xe | 17.6.1z | Yes |
| Operating System | cisco | ios_xe | 17.6.1z1 | Yes |
| Operating System | cisco | ios_xe | 17.6.2 | Yes |
| Operating System | cisco | ios_xe | 17.6.3 | Yes |
| Operating System | cisco | ios_xe | 17.6.3a | Yes |
| Operating System | cisco | ios_xe | 17.6.4 | Yes |
| Operating System | cisco | ios_xe | 17.6.5 | Yes |
| Operating System | cisco | ios_xe | 17.6.5a | Yes |
| Operating System | cisco | ios_xe | 17.6.6 | Yes |
| Operating System | cisco | ios_xe | 17.6.6a | Yes |
| Operating System | cisco | ios_xe | 17.6.7 | Yes |
| Operating System | cisco | ios_xe | 17.6.8 | Yes |
| Operating System | cisco | ios_xe | 17.6.8a | Yes |
| Operating System | cisco | ios_xe | 17.7.1 | Yes |
| Operating System | cisco | ios_xe | 17.7.1a | Yes |
| Operating System | cisco | ios_xe | 17.7.1b | Yes |
| Operating System | cisco | ios_xe | 17.7.2 | Yes |
| Operating System | cisco | ios_xe | 17.8.1 | Yes |
| Operating System | cisco | ios_xe | 17.8.1a | Yes |
| Operating System | cisco | ios_xe | 17.9.1 | Yes |
| Operating System | cisco | ios_xe | 17.9.1a | Yes |
| Operating System | cisco | ios_xe | 17.9.1w | Yes |
| Operating System | cisco | ios_xe | 17.9.1x | Yes |
| Operating System | cisco | ios_xe | 17.9.1x1 | Yes |
| Operating System | cisco | ios_xe | 17.9.1y | Yes |
| Operating System | cisco | ios_xe | 17.9.1y1 | Yes |
| Operating System | cisco | ios_xe | 17.9.2 | Yes |
| Operating System | cisco | ios_xe | 17.9.2a | Yes |
| Operating System | cisco | ios_xe | 17.9.3 | Yes |
| Operating System | cisco | ios_xe | 17.9.3a | Yes |
| Operating System | cisco | ios_xe | 17.9.4 | Yes |
| Operating System | cisco | ios_xe | 17.9.4a | Yes |
| Operating System | cisco | ios_xe | 17.9.5 | Yes |
| Operating System | cisco | ios_xe | 17.9.5a | Yes |
| Operating System | cisco | ios_xe | 17.9.5b | Yes |
| Operating System | cisco | ios_xe | 17.9.5e | Yes |
| Operating System | cisco | ios_xe | 17.9.5f | Yes |
| Operating System | cisco | ios_xe | 17.10.1 | Yes |
| Operating System | cisco | ios_xe | 17.10.1a | Yes |
| Operating System | cisco | ios_xe | 17.10.1b | Yes |
| Operating System | cisco | ios_xe | 17.11.1 | Yes |
| Operating System | cisco | ios_xe | 17.11.1a | Yes |
| Operating System | cisco | ios_xe | 17.11.99sw | Yes |
| Operating System | cisco | ios_xe | 17.12.1 | Yes |
| Operating System | cisco | ios_xe | 17.12.1a | Yes |
| Operating System | cisco | ios_xe | 17.12.1w | Yes |
| Operating System | cisco | ios_xe | 17.12.1x | Yes |
| Operating System | cisco | ios_xe | 17.12.1y | Yes |
| Operating System | cisco | ios_xe | 17.12.1z | Yes |
| Operating System | cisco | ios_xe | 17.12.1z1 | Yes |
| Operating System | cisco | ios_xe | 17.12.2 | Yes |
| Operating System | cisco | ios_xe | 17.12.2a | Yes |
| Operating System | cisco | ios_xe | 17.12.3 | Yes |
| Operating System | cisco | ios_xe | 17.12.3a | Yes |
| Operating System | cisco | ios_xe | 17.13.1 | Yes |
| Operating System | cisco | ios_xe | 17.13.1a | Yes |
| Operating System | cisco | ios_xe | 17.14.1 | Yes |
| Operating System | cisco | ios_xe | 17.14.1a | Yes |
| Application | cisco | catalyst_9800-cl_wireless_controllers_for_cloud | * | No |
| Hardware | cisco | catalyst_9105axi | - | No |
| Hardware | cisco | catalyst_9115axe | - | No |
| Hardware | cisco | catalyst_9115axi | - | No |
| Hardware | cisco | catalyst_9117axi | - | No |
| Hardware | cisco | catalyst_9120axe | - | No |
| Hardware | cisco | catalyst_9120axi | - | No |
| Hardware | cisco | catalyst_9120axp | - | No |
| Hardware | cisco | catalyst_9130axe | - | No |
| Hardware | cisco | catalyst_9130axi | - | No |
| Hardware | cisco | catalyst_9800-40 | - | No |
| Hardware | cisco | catalyst_9800-80 | - | No |
| Hardware | cisco | catalyst_9800-l | - | No |
| Hardware | cisco | catalyst_cw9800h1 | - | No |
| Hardware | cisco | catalyst_cw9800h2 | - | No |
| Hardware | cisco | catalyst_cw9800m | - | No |