What is the severity of CVE-2024-20259?

CVE-2024-20259 is classified as a critical severity vulnerability that can lead to a denial of service (DoS) condition.

How do I fix CVE-2024-20259?

To mitigate CVE-2024-20259, users should upgrade to the latest version of Cisco IOS XE that addresses this vulnerability.

What does CVE-2024-20259 affect?

CVE-2024-20259 affects the DHCP snooping feature in Cisco IOS XE Software.

Who can exploit CVE-2024-20259?

An unauthenticated, remote attacker can exploit CVE-2024-20259 to send a crafted DHCP request packet.

What impact does CVE-2024-20259 have on affected devices?

The exploitation of CVE-2024-20259 can cause affected devices to reload unexpectedly, resulting in service disruption.

Vulnerability/
CVE-2024-20259

high

8.6

CWE

122

27/3/2024

27/8/2024

CVE-2024-20259

First published: Wed Mar 27 2024(Updated: )

A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a crafted IPv4 DHCP request packet being mishandled when endpoint analytics are enabled. An attacker could exploit this vulnerability by sending a crafted DHCP request through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: The attack vector is listed as network because a DHCP relay anywhere on the network could allow exploits from networks other than the adjacent one.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS XE Web UI

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Reference Links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dhcp-dos-T3CXPO9z

Frequently Asked Questions

What is the severity of CVE-2024-20259?
CVE-2024-20259 is classified as a critical severity vulnerability that can lead to a denial of service (DoS) condition.
How do I fix CVE-2024-20259?
To mitigate CVE-2024-20259, users should upgrade to the latest version of Cisco IOS XE that addresses this vulnerability.
What does CVE-2024-20259 affect?
CVE-2024-20259 affects the DHCP snooping feature in Cisco IOS XE Software.
Who can exploit CVE-2024-20259?
An unauthenticated, remote attacker can exploit CVE-2024-20259 to send a crafted DHCP request packet.
What impact does CVE-2024-20259 have on affected devices?
The exploitation of CVE-2024-20259 can cause affected devices to reload unexpectedly, resulting in service disruption.

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