system
Identify the affected product in <CVE-2021-25677>.
user
Which product is affected by <CVE-2021-25677>?
assistant
The affected product is APOGEE PXC Compact (BACnet) and version: All versions < V3.5.5, All versions < V2.8.20, All versions < V3.5.5, All versions < V2.8.20, All versions, All versions < V2017.02.3, All versions < V2017.02.4, All versions < V4.1.0, Versions including affected DNS modules, All versions < V0.5.0.0, All versions >= V0.5.0.0 < V1.0.0.0, All versions < V3.5.5, All versions < V3.5.5.