MAC Control Element signaling in 5G is unencrypted and lacks integrity protection, and many of its fields can be combined to leak user location or be tampered with to disrupt service.
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The Security Overview and Analysis of 3GPP 5G MAC CE
MAC Control Element signaling in 5G is unencrypted and lacks integrity protection, and many of its fields can be combined to leak user location or be tampered with to disrupt service.