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

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

To place CPE in the wider telecom-security picture, review IMEI, Cell Phone (Mobile Phone), Firmware, RAN, IRSF and Malware.

Related terms

Equipment

Devices and modems (UE, baseband, IoT, CPE, IMEI)

Articles in the P1 mobile network security guide

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