CVE-2026-2541— Micca KE700 Brute-force vulnerability due to low entropy
Quick assessment
Affected
Micca Auto Electronics Co., Ltd. Car Alarm System KE700
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Micca KE700是Micca公司的一款源书架式音箱。 Micca KE700存在安全漏洞，该漏洞源于滚动码中仅使用6位标识符进行身份验证，熵值过低，可能导致暴力破解攻击，进而预测下一个有效滚动码并获取未经授权的车辆访问权限。
Possible ATT&CK Techniques 1 AI
T1212 · Exploitation for Credential Access
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I. Basic Information for CVE-2026-2541
Vulnerability Information
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Vulnerability Title
Micca KE700 Brute-force vulnerability due to low entropy
Source: CVE Program / CVE List V5
Vulnerability Description
The Micca KE700 system relies on a 6-bit portion of an identifier for authentication within rolling codes, providing only 64 possible combinations. This low entropy allows an attacker to perform a brute-force attack against one component of the rolling code. Successful exploitation simplify an attacker to predict the next valid rolling code, granting unauthorized access to the vehicle.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:H/V:D/RE:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
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，该漏洞源于滚动码中仅使用6位标识符进行身份验证，熵值过低，可能导致暴力破解攻击，进而预测下一个有效滚动码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-2026-2541
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-2541 (1)
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-2026-2540 | Micca KE700 Acceptance of previously used rolling codes |
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V. Comments for CVE-2026-2541
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