Our main nvidia proprietary drivers are nvidia-glx-driver*, nvidia-open* (yes its still proprietary despite the name). They are currently on v580.159.03 and if you read the security bulletin for R580 it states "All driver versions prior to 580.159.03". So we are good there.
The nvidia-beta-driver* is on 590.48.01, which is not covered in their security report but could be affected. It should be updated for more reasons than that but as the description states:
Summary : NVIDIA Beta Binary Driver (UNSUPPORTED)
Description : Unsupported. Use at your own risk.
The only other proprietary nvidia driver we provide is nvidia-470-glx-driver which unlike other drivers we only provide for users on the linux-lts kernel. As we have previously warned users that have hardware that requires this driver it has been unsupported by nvidia for almost 2 years and will be deprecated in the near future. So there is 0 chance nvidia will provide an update to this driver.
The 470 driver is only provided to give users some extra time to upgrade their hardware given recent insane hardware prices. Individual users will have to decide to upgrade their hardware or switch to the noveau driver taking a massive performance hit in doing so.