CVE-2024-20446

Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability

Description

A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.17%
Affected: Cisco Cisco NX-OS Software
Published at:
Updated at:

References

Link Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn

Frequently Asked Questions

What is the severity of CVE-2024-20446?
CVE-2024-20446 has been scored as a high severity vulnerability.
How to fix CVE-2024-20446?
To fix CVE-2024-20446, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-20446 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-20446 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-20446?
CVE-2024-20446 affects Cisco Cisco NX-OS Software.
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