Yadea T5 Electric Bicycles (models manufactured in/after 2024) have a weak authentication mechanism in their keyless entry system. The system utilizes the EV152…

Yadea T5 Electric Bicycles manufactured in 2024 and later contain a critical authentication vulnerability in their keyless entry system. The vulnerability stems from the use of the EV1527 fixed-code RF protocol without proper security mechanisms like rolling codes or cryptographic challenge-response. Attackers can perform replay attacks by intercepting legitimate key fob transmissions, allowing complete unauthorized vehicle operation. This represents a significant security flaw affecting the physical security of electric bicycles through RF signal manipulation.