CPE (Customer Premises Equipment)

Customer Premises Equipment is the network equipment installed at the subscriber's location: modems, ONTs, residential gateways, IP phones, set-top boxes, and increasingly 5G fixed-wireless-access routers. CPE security is critical because compromised devices feed botnets (Mirai, Mozi) and can be used as pivots into the operator's network; remote management via TR-069/TR-369 must be hardened and patched.

Categories: Radio Access NetworkIdentity and SubscriberThreats and Attacks

CPE in context

The radio access network is where mobile devices attach to the operator's infrastructure. Attacks in this layer include IMSI catching, rogue base stations and downgrade attacks; defenses rest on mutual authentication, integrity-protected signaling and Open RAN supply-chain hygiene.

Subscriber identifiers (IMSI, SUPI, MSISDN, IMEI) anchor authentication, charging and lawful interception. Any protocol that leaks a permanent identifier is treated as a privacy defect, which is why 5G introduced SUCI concealment on the air interface.

To place CPE in the wider telecom-security picture, review Cell Phone (Mobile Phone), Firmware, IMEI, IRSF, Malware and Paging Attacks — each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

More from the TelcoSec Glossary

Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.