Provide references for CVE-2018-11518.
Where can I find more information about CVE-2018-11518?
References are available at: https://twitter.com/mishradhiraj_/status/1001664440759091207, https://datarift.blogspot.com/2018/05/CVE-2018-11518-abusing-ivr-systems.html, http://virgil-cj.blogspot.com/2018/05/0day-legacy-ivr-lets-phreak.html, https://twitter.com/mishradhiraj_/status/1001664204485652482.