References https://nvd.nist.gov/vuln/detail/CVE-2024-20357 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipphone-multi-vulns-cXAhCvS https://www.cve.org/CVERecord?id=CVE-2024-20357 https://www.cvedetails.com/cve/CVE-2024-20357/ https://github.com/advisories/GHSA-49gp-r5pw-pqg8 https://digital.nhs.uk/cyber-alerts/2024/cc-4485 https://gbhackers.com/cisco-ip-phone-vulnerability-2/