K23022557 : The BIG-IP system may respond with the NXDOMAIN status when it receives a DNS query of a certain type on a CNAME wide IP
Security Advisory Description The BIG-IP system may respond with the NXDOMAIN status when it receives a DNS query on a CNAME wide IP. This issue occurs when all of the following conditions are met:
More info:
https://my.f5.com/manage/s/article/K23022557?utm_source=f5support&utm_medium=RSS