Riskcovery

CVE-2025-20191

Multiple Cisco Products Denial of Service Vulnerability

State
Published
Severity
7.4 High
Published
May 7, 2025
Updated
May 7, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.4 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-805 Buffer Access with Incorrect Length Value

Affected Products

ProductVersions
Cisco NX-OS SoftwareCisco
  • 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
  • and 94 more versions
Cisco Wireless LAN Controller (WLC)Cisco
  • 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
  • and 59 more versions

References

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