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High · 8.4 CVE-2026-2540 EUVD-2026-5831GHSA-822c-h5gx-7pw7

Micca KE700 Acceptance of previously used rolling codes

Published Feb 15, 2026 · Updated Feb 17, 2026 · Assigned by ASRG

Description

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.

Affected products

VendorProductAffectedFixed
Micca Auto Electronics Car Alarm System KE700 KE700 —

References