CVE-2026-2540
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.4
- CVSS vector
- CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:H/V:D/RE:M
- EPSS probability
- 0.21%
- CWE
- CWE-288, CWE-294
- Published
- 2026-02-15
- Last modified
- 2026-03-12
Affected products
- Micca Auto Electronics Co., Ltd. Car Alarm System KE700
- Micca Auto Electronics Co., Ltd. Car Alarm System KE700
Weakness type
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