Home Cisco CVE-2026-20010
Back to Cisco

CVE-2026-20010

NX-OS Software - Link Layer Discovery Protocol (LLDP)

Cisco CVSS 7.4 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, resulting in a denial of service (DoS) condition. An attacker would need to be directly connected to an interface of an affected device to exploit this vulnerability."

Operational Audit Arsenal

Target Type Firmware
Target Asset Cisco NX-OS Software
Standard Path Network Devices

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-2026-20010: Potential DoS vulnerability in Cisco NX-OS Software LLDP, requiring firmware update and reboot of affected network devices.

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.