Cisco Security Advisory Cisco Smart Install Protocol Misuse Informational Advisory ID: cisco-sa-20170214-smi First Published: 2017 February 14 00:00 GMT Version 4.2: Final Email Summary Recommendations section of this notice to assess and ensure their network switches are properly protected against abuse of the Smart Install feature. Cisco does not consider this a vulnerability in Cisco IOS, IOS XE, or the Smart install feature itself but a misuse of Smart Install protocol, which does not require authentication by design.”]
Source: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170214-smi