CVE-2026-2540
HighSummary
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. The attack requires sending two previously captured codes in a specific sequence, forcing the system to accept stale rolling codes and execute a command. Successful exploitation allows cloning the alarm key and unauthorized access to the vehicle to unlock or lock doors.
Risk Assessment
The risk includes unauthorized access to the vehicle, potentially leading to theft or break-in. An attacker can control door locks without a physical key.
Recommendation
It is recommended to update the Micca KE700 firmware if a patch is available and avoid using systems with flawed resynchronization. Additionally, monitor communications and apply extra security measures such as encryption.
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Original NVD description (English source)
The Micca KE700 system contains flawed resynchronization logic and is vulnerable to replay attacks. This attack requires sending two previously captured codes in a specific sequence. As a result, the system can be forced to accept previously used (stale) rolling codes and execute a command. Successful exploitation allows an attacker to clone the alarm key. This grants the attacker unauthorized access to the vehicle to unlock or lock the doors.