They say that the ADUPS malware has already been neutered, and that a future firmware update would entirely remove it from the tablet.
“NOOK Tablet 7” went on sale on November 26. By that time, the device automatically updated to a newer version of ADUPS (5.5), which has been certified as complying with Google’s security requirements, when first connected to Wi-Fi. ADUPS has confirmed to Barnes & Noble that it never collected any personally identifiable information or location data from NOOK Tablet 7” devices, nor will it do so in the future.
Finally, we are working on a software update to remove ADUPS completely from the NOOK Tablet 7”. That update will be made available to download within the next few weeks, but in the meantime customers can rest assured that the device is safe to use.” - Fred Argir, Chief Digital Officer
I am still waiting for users to confirm that their tablets have been updated as B&N mentioned in their statement.
There is at least one user report which contradicts that claim, so I would suggest that you take it with a grain of salt.