Acrobat Reader 2017 Clasis crash post Jan 2022 security RDRcef.exe

Dear Support,

we were running Acrobat Reader 2017 Enteprise without issues.

Since we deployed the Jan 2022 update 17.011.30207 we have constantly crashes and now in 7 days or 54.000 instances.

We had something similar in the past and it was a bug. Is this know or anything related to the latest update?

Regards

Lukas