Description

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, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific fields in an LLDP frame. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface of an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. Note: LLDP is a Layer 2 link protocol. To exploit this vulnerability, an attacker would need to be directly connected to an interface of an affected device, either physically or logically (for example, through a Layer 2 Tunnel configured to transport the LLDP protocol).

INFO

Published Date :

2026-02-25T16:18:14.561Z

Last Modified :

2026-02-25T19:05:49.108Z

Source :

cisco
AFFECTED PRODUCTS

The following products are affected by CVE-2026-20010 vulnerability.

Vendors Products
Cisco
  • Nx-os Software
  • Nx-os System Software In Aci Mode
  • Unified Computing System Manager
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-20010.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
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Scope
Confidentiality Impact
Integrity Impact
Availability Impact