QID 316954

Date Published: 2021-04-29

QID 316954: Cisco Nexus 9000 Series Fabric Switches ACI Mode Link Layer Discovery Protocol Port Denial of Service Vulnerability(cisco-sa-apic-lldap-dos-WerV9CFj)

Affected Products
At the time of publication, this vulnerability affected Cisco Nexus 9000 Series Fabric Switches in ACI mode if they had an SFP interface installed.

QID Detection Logic(Authenticated):
It checks for vulnerable version of Cisco NX-OS using show version Command.

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 316954

    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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