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Rewterz Threat Advisory – CVE-2022-0721 – Cisco FXOS and Cisco NX-OS Vulnerability

Severity

Medium

Analysis Summary

CVE-2022-0721

Cisco FXOS and Cisco NX-OS are vulnerable to a denial of service, caused by improper handling of Cisco Discovery Protocol messages. By sending a series of malicious Cisco Discovery Protocol messages, a remote attacker could exploit this vulnerability to cause the service to restart.

Impact

  • Denial of Service

Indicators of Compromise

CVE

  • CVE-2022-0721

Affected Vendors

Cisco

Affected Products

  • Cisco NX-OS
  • Cisco Nexus 3000 Series Switches
  • Cisco MDS 9000 Series Multilayer Switches
  • Cisco Nexus 6000 Series Switches

Remediation

Refer to Cisco Security Advisory for patch, upgrade or suggested workaround information.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cdp-dos-G8DPLWYG