CVE-2025-20191
Published: May 7, 2025
Modified: May 7, 2025
CVSS v3.1
7.4
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.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco NX-OS Software | affected 8.2(5)affected 7.3(5)D1(1)affected 8.4(2)affected 8.4(3)affected 9.2(3)+114 more versions |
Cisco | Cisco Wireless LAN Controller (WLC) | affected 8.10.112.0affected 8.8.120.0affected 8.3.143.0affected 8.3.111.0affected 8.2.164.0+79 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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