CVE-2024-20480 | Cisco IOS XE - DHCP Snooping Operational Intel

Executive Risk Summary

"A vulnerability in the DHCP Snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause high CPU utilization on an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of IPv4 DHCP packets and can be exploited by sending certain IPv4 DHCP packets to an affected device."

Operational Audit Arsenal

Target Type Firmware Image

Target Asset Cisco IOS XE Software

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-2024-20480: Cisco IOS XE DHCP Snooping vulnerability causing DoS condition, requiring manual reload to recover. Verify version using 'show version' CLI command.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Official Advisoryhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-sda-edge-dos-MBcbG9k

Related Cisco Threats

CVE-2026-20079 CVSS 10

Secure Firewall Management Center (FMC) Software

CVE-2026-20127 CVSS 10

Catalyst SD-WAN Controller - Peering Authentication

CVE-2025-20188 CVSS 10

Cisco IOS XE - Wireless LAN Controllers

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.