Description
The Cisco Cooperation has recently released security updates for vulnerabilities in multiple Cisco products. It is recommended that you take the necessary precautions by ensuring your products are always updated.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-ntp-dos
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-api-dos
The Guyana National CIRT recommends users and administration to follow these guidelines and to apply them where necessary.
Reference
Cisco Release Security Updates for Multiple Products (US-Cert)