Home Cisco CVE-2024-20321
Back to Cisco

CVE-2024-20321

Cisco NX-OS Software - eBGP

Cisco CVSS 8.6 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the External Border Gateway Protocol (eBGP) implementation 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 exists because eBGP traffic is mapped to a shared hardware rate-limiter queue, allowing an attacker to cause eBGP neighbor sessions to be dropped."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco NX-OS 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

Network disruption possible during patching

Internal Work Notes

CVE-2024-20321: Cisco NX-OS Software eBGP DoS vulnerability - verify version and apply patch to prevent remote denial of service attacks

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Related Cisco Threats

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