QID 730060

QID 730060: Cisco Nexus 9000 Series Fabric Switches ACI Mode Link Layer Discovery Protocol Port Denial of Service Vulnerability(cisco-sa-apic-lldap-dos-WerV9CFj)

A vulnerability in the Link Layer Discovery Protocol (LLDP) for Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, adjacent attacker to disable switching on a small form-factor pluggable (SFP) interface.

A successful exploit could allow the attacker to disable switching on the SFP interface, which could disrupt network traffic.

  • CVSS V3 rated as Medium - 4.7 severity.
  • CVSS V2 rated as Low - 2.9 severity.
    • Solution

    Customers are advised to refer to cisco-sa-apic-lldap-dos-WerV9CFj for more information.

    Vendor References

    CVEs related to QID 730060

    CVE-2021-1231 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-apic-lldap-dos-WerV9CFj URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-lldap-dos-WerV9CFj
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