If you mean the relationship between NSA and the vulnerability, then no, there actually is: it was NSA who discovered the vulnerability and it has not been used

If you mean the relationship between NSA and the vulnerability, then no, there actually is: it was NSA who discovered the vulnerability and it has not been used in the wild (according to NSA themselves; source: https://twitter.com/briankrebs/status/1217082363391377408 https://twitter.com/briankrebs/status/1217082363391377408)