system
Identify the affected product in <CVE-2021-31888>.
user
Which product is affected by <CVE-2021-31888>?
assistant
The affected product is APOGEE MBC (PPC) (BACnet) and version: All versions, All versions, All versions, All versions, All versions < V3.5.4, All versions < V2.8.19, All versions < V3.5.4, All versions < V2.8.19, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions >= V2.3 and < V6.30.016, All versions, All versions < V2017.02.4, All versions, All versions < V3.5.4, All versions < V3.5.4.