Multiple Cisco Products Denial of Service Vulnerability

Summary

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.

Timeline

1. May 7, 2025, 5:18 PM UTCCVE published
2. May 7, 2025, 6:56 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. May 7, 2025, 7:46 PM UTCRecord last updated

Affected versions

• 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), 9.3(1), and 89 more

• 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, 8.5.102.0, 8.2.161.0, 8.5.151.0, and 54 more

References 1