system
Provide references for <CVE-2021-25681>.
user
Where can I find more information about <CVE-2021-25681>?
assistant
References are available at: http://adtran.com, https://github.com/3ndG4me/AdTran-Personal-Phone-Manager-Vulns/blob/main/CVE-2021-25681.md, http://packetstormsecurity.com/files/162280/Adtran-Personal-Phone-Manager-10.8.1-DNS-Exfiltration.html.