CVE-2026-96274: Uncaught exception in Baicells Nova 430H
In Baicells Nova 430H, an unauthenticated device within radio range can send a malformed uplink message during connection setup that contains an invalid NAS payload. Because the eNodeB does not properly validate this payload, it forwards the message to the core network, which can trigger a shutdown of the signaling association for the cell. This results in a temporary service disruption until the eNodeB and core network re-establish connectivity.
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed to this issue?
Baicells Nova 430H deployments are exposed when an attacker can get within radio range of the cell. The attack is performed over the radio interface during connection setup and does not require authentication.
What does an attacker need to do to trigger the disruption?
The attacker needs to send a malformed uplink connection-setup message containing an invalid NAS payload. The eNodeB forwards the insufficiently validated payload to the core network, where it can shut down the cell's signaling association.
What is the operational impact if exploitation succeeds?
The affected cell experiences a temporary service disruption. Service resumes after the eNodeB and core network re-establish connectivity.