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CVE-2024-20446

Cisco NX-OS Software - DHCPv6 Relay Agent

Cisco CVSS 8.6 Updated March 16, 2026

Executive Risk Summary

"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. The vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message, which could allow an attacker to crash and restart the dhcp_snoop process, resulting in a DoS condition."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset dhcp_snoop process
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Likely

High

Internal Work Notes

CVE-2024-20446: Cisco NX-OS Software DHCPv6 Relay Agent DoS Vulnerability - Potential for remote denial of service, recommend immediate patching and verification of device stability.

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