Provide references for CVE-2021-1531.
Where can I find more information about CVE-2021-1531?
References are available at: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cml-cmd-inject-N4VYeQXB, http://packetstormsecurity.com/files/163265/Cisco-Modeling-Labs-2.1.1-b19-Remote-Command-Execution.html.