Skip to content
CVE PROGRAM SOURCE RECORD7.4 High

CVE-2025-20191

Multiple Cisco Products Denial of Service Vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
cisco

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco NX-OS Software

Default version status: unknown

  • 8.2(5)affected
  • 7.3(5)D1(1)affected
  • 8.4(2)affected
  • 8.4(3)affected
  • 9.2(3)affected
  • 9.2(2v)affected
  • 7.3(4)D1(1)affected
  • 8.2(1)affected
  • 9.2(1)affected
  • 9.2(2t)affected
  • 9.2(3y)affected
  • 7.0(3)I7(6z)affected
  • 9.3(2)affected
  • 7.0(3)I7(3z)affected
  • 7.0(3)IM7(2)affected
  • 7.0(3)I7(5a)affected
  • 8.1(1)affected
  • 8.2(2)affected
  • 8.3(2)affected
  • 7.3(2)D1(3a)affected
  • 9.2(4)affected
  • 8.1(2)affected
  • 7.3(3)D1(1)affected
  • 8.2(3)affected
  • 7.0(3)I7(2)affected
  • 7.0(3)I7(3)affected
  • 8.4(1)affected
  • 7.3(0)DX(1)affected
  • 7.3(2)D1(1)affected
  • 9.3(1)affected
  • 7.0(3)I7(6)affected
  • 7.3(2)D1(2)affected
  • 8.2(4)affected
  • 7.0(3)I7(4)affected
  • 7.0(3)I7(7)affected
  • 9.3(1z)affected
  • 9.2(2)affected
  • 8.1(2a)affected
  • 7.3(2)D1(3)affected
  • 7.0(3)I7(5)affected
  • 7.0(3)I7(1)affected
  • 7.0(3)IA7(2)affected
  • 7.0(3)IA7(1)affected
  • 8.3(1)affected
  • 7.3(1)D1(1)affected
  • 7.3(0)D1(1)affected
  • 9.3(3)affected
  • 7.3(2)D1(1d)affected
  • 7.0(3)I7(8)affected
  • 9.3(4)affected
  • 7.3(6)D1(1)affected
  • 8.2(6)affected
  • 9.3(5)affected
  • 7.0(3)I7(9)affected
  • 9.3(6)affected
  • 10.1(2)affected
  • 10.1(1)affected
  • 8.4(4)affected
  • 7.3(7)D1(1)affected
  • 9.3(5w)affected
  • 8.2(7)affected
  • 9.3(7)affected
  • 9.3(7k)affected
  • 7.0(3)I7(9w)affected
  • 10.2(1)affected
  • 7.3(8)D1(1)affected
  • 9.3(7a)affected
  • 8.2(7a)affected
  • 9.3(8)affected
  • 8.4(4a)affected
  • 8.4(5)affected
  • 7.0(3)I7(10)affected
  • 8.2(8)affected
  • 10.2(1q)affected
  • 10.2(2)affected
  • 9.3(9)affected
  • 10.1(2t)affected
  • 7.3(9)D1(1)affected
  • 10.2(3)affected
  • 8.4(6)affected
  • 10.2(3t)affected
  • 9.3(10)affected
  • 10.2(2a)affected
  • 8.2(9)affected
  • 10.3(1)affected
  • 10.2(4)affected
  • 8.4(7)affected
  • 10.3(2)affected
  • 8.4(6a)affected
  • 9.3(11)affected
  • 10.3(3)affected
  • 10.2(5)affected
  • 8.2(10)affected
  • 9.3(12)affected
  • 10.2(3v)affected
  • 10.4(1)affected
  • 8.4(8)affected
  • 10.3(99w)affected
  • 10.2(6)affected
  • 10.3(3w)affected
  • 10.3(99x)affected
  • 10.3(3o)affected
  • 8.4(9)affected
  • 10.3(4)affected
  • 10.3(3p)affected
  • 10.3(4a)affected
  • 10.4(2)affected
  • 10.3(3q)affected
  • 9.3(13)affected
  • 8.2(11)affected
  • 10.3(5)affected
  • 10.2(7)affected
  • 10.4(3)affected
  • 10.3(3x)affected
  • 10.3(4g)affected
  • 10.2(8)affected
  • 10.3(3r)affected
  • 9.3(14)affected
  • 10.3(4h)affected

Cisco Cisco Wireless LAN Controller (WLC)

Default version status: unknown

  • 8.10.112.0affected
  • 8.8.120.0affected
  • 8.3.143.0affected
  • 8.3.111.0affected
  • 8.2.164.0affected
  • 8.5.109.0affected
  • 8.3.132.0affected
  • 8.5.105.0affected
  • 8.2.170.0affected
  • 8.2.160.0affected
  • 8.8.100.0affected
  • 8.9.111.0affected
  • 8.7.102.0affected
  • 8.3.102.0affected
  • 8.3.133.0affected
  • 8.3.131.0affected
  • 8.5.100.0affected
  • 8.5.131.0affected
  • 8.3.122.0affected
  • 8.5.101.0affected
  • 8.3.112.0affected
  • 8.5.120.0affected
  • 8.2.141.0affected
  • 8.3.141.0affected
  • 8.3.121.0affected
  • 8.2.151.0affected
  • 8.3.130.0affected
  • 8.5.102.0affected
  • 8.2.161.0affected
  • 8.5.151.0affected
  • 8.2.100.0affected
  • 8.5.135.0affected
  • 8.3.135.0affected
  • 8.5.140.0affected
  • 8.7.106.0affected
  • 8.9.100.0affected
  • 8.8.111.0affected
  • 8.2.110.0affected
  • 8.5.110.0affected
  • 8.2.130.0affected
  • 8.5.141.105affected
  • 8.2.121.0affected
  • 8.8.125.0affected
  • 8.3.150.0affected
  • 8.2.111.0affected
  • 8.10.105.0affected
  • 8.5.108.0affected
  • 8.3.108.0affected
  • 8.2.166.0affected
  • 8.5.103.0affected
  • 8.3.140.0affected
  • 8.6.101.0affected
  • 8.4.100.0affected
  • 8.5.160.0affected
  • 8.5.161.0affected
  • 8.8.130.0affected
  • 8.10.120.0affected
  • 8.10.121.0affected
  • 8.10.113.0affected
  • 8.10.122.0affected
  • 8.10.130.0affected
  • 8.10.141.0affected
  • 8.10.142.0affected
  • 8.5.171.0affected
  • 8.10.150.0affected
  • 8.10.151.0affected
  • 8.10.162.0affected
  • 8.5.182.0affected
  • 8.10.171.0affected
  • 8.10.180.0affected
  • 8.10.181.0affected
  • 8.10.182.0affected
  • 8.10.170.0affected
  • 8.10.183.0affected
  • 8.5.182.7affected
  • 8.5.182.105affected
  • 8.5.182.106affected
  • 8.10.185.0affected
  • 8.5.182.107affected
  • 8.5.182.11affected
  • 8.5.182.108affected
  • 8.10.190.0affected
  • 8.10.195.0affected
  • 8.5.182.12affected

References