#No vstack command not working install#
Only Smart Install client switches are affected by the vulnerability that is described in this advisory. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software and have the Smart Install client feature enabled. For a complete list of the advisories and links to them, see Cisco Event Response: March 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. This advisory is part of the March 28, 2018, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 20 Cisco Security Advisories that describe 22 vulnerabilities. This advisory is available at the following link: Smart Install client functionality is enabled by default on switches that are running Cisco IOS Software releases that have not been updated to address Cisco bug ID CSCvd36820. There are no workarounds that address this vulnerability. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786.Ĭisco has released software updates that address this vulnerability. The vulnerability is due to improper validation of packet data. A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition.
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