CVE-2026-2540— Micca KE700 Acceptance of previously used rolling codes
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I. Basic Information for CVE-2026-2540
Vulnerability Information
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Vulnerability Title
Micca KE700 Acceptance of previously used rolling codes
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
Micca KE700 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Micca KE700是Micca公司的一款源书架式音箱。 Micca KE700存在安全漏洞，该漏洞源于重新同步逻辑存在缺陷，可能导致重放攻击，进而允许攻击者克隆警报密钥并获取未经授权的车辆访问权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Micca Auto Electronics Co., Ltd. | Car Alarm System KE700 | KE700 | - |
II. Public POCs for CVE-2026-2540
| # | POC Description | Source Link | Shenlong Link |
|---|
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- CVE-2026-2540: Micca KE700 Acceptance of previously used rolling codes - asrg.iothird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-2540
Same Patch Batch · Micca Auto Electronics Co., Ltd. · 2026-02-15 · 3 CVEs total
| CVE-2026-2539 | Micca KE700 Cleartext transmission of key fob ID | |
| CVE-2026-2541 | Micca KE700 Brute-force vulnerability due to low entropy |
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V. Comments for CVE-2026-2540
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