Micca KE700 Brute-force vulnerability due to low entropy
Priority LOW 28CWE-331Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00251 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Micca Auto Electronics Co., Ltd. | Car Alarm System KE700 | KE700 and later | — | No fix listed | CNA |
- Car Alarm System KE700 VendorMicca Auto Electronics Co., Ltd. Affected KE700 and later Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2541
- 2026-10-03 Alias added: GHSA-h385-cwmv-vj9f
References
More Micca Auto Electronics Co., Ltd. vulnerabilities
- TI-2026-02166 Micca KE700 Acceptance of previously used rolling codes CVSS 4.0HIGH 8.4
- TI-2026-02165 Micca KE700 Cleartext transmission of key fob ID CVSS 4.0MEDIUM 5.7
Sources
- CVE-2026-2541 · CVE Program
- CVE-2026-2541 · NVD
- FIRST EPSS
- GHSA-h385-cwmv-vj9f · GitHub Advisory Database · CC BY 4.0
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