An invalid memory access when handling the ProtocolIE_ID field of S1Setup Request messages in Athonet vEPC MME v11.4.0 allows attackers to cause a Denial of Service (DoS) to the cellular network by repeatedly initiating connections and sending a crafted payload.

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The V-ring is stretched using its inherent tension and installed directly on the shaft. It can be fixed in place without disassembly and assembly, and can replace any other oil seal for rotating shafts. The V-ring uses a throwing action to throw away solids and liquids by the rotating sealing lip, thereby achieving dustproof and waterproof effects while ensuring that the lubricating grease remains inside the bearing.

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