# CVE-2026-2540

## Summary

- **CVE ID:** CVE-2026-2540
- **Severity:** HIGH
- **CVSS Score:** 8.4 (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)
- **CWE:** CWE-288, CWE-294
- **Published:** Feb 15, 2026
- **Last Modified:** Mar 12, 2026

## 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

- Micca Auto Electronics Co., Ltd. — Car Alarm System KE700 (KE700)
- Micca Auto Electronics Co., Ltd. — Car Alarm System KE700 (KE700+)

## References

- [CNA](https://asrg.io/security-advisories/cve-2026-2540/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._