Description
A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cisco | Cisco NX-OS Software | 8.2(5), 7.3(5)D1(1), 8.4(2), 8.4(3), 9.2(3), 9.2(2v), 7.3(4)D1(1), 8.2(1), 9.2(1), 9.2(2t), 9.2(3y), 7.0(3)I7(6z), 9.3(2), 7.0(3)I7(3z), 7.0(3)IM7(2), 7.0(3)I7(5a), 8.1(1), 8.2(2), 8.3(2), 7.3(2)D1(3a), 9.2(4), 8.1(2), 7.3(3)D1(1), 8.2(3), 7.0(3)I7(2), 7.0(3)I7(3), 8.4(1), 7.3(0)DX(1), 7.3(2)D1(1),… | — |
| Cisco | Cisco Wireless LAN Controller (WLC) | 8.10.112.0, 8.8.120.0, 8.3.143.0, 8.3.111.0, 8.2.164.0, 8.5.109.0, 8.3.132.0, 8.5.105.0, 8.2.170.0, 8.2.160.0, 8.8.100.0, 8.9.111.0, 8.7.102.0, 8.3.102.0, 8.3.133.0, 8.3.131.0, 8.5.100.0, 8.5.131.0, 8.3.122.0, 8.5.101.0, 8.3.112.0, 8.5.120.0, 8.2.141.0, 8.3.141.0, 8.3.121.0, 8.2.151.0, 8.3.130.0, 8… | — |
Advisories 1
- WID-SEC-2025-0969 Cisco IOS, IOS XE, NX-OS and WLC AireOS Software (SISF): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 7, 2025