Provide references for CVE-2021-1414.
Where can I find more information about CVE-2021-1414?
References are available at: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv34x-rce-8bfG2h6b, https://www.zerodayinitiative.com/advisories/ZDI-21-559/.