CVE-2026-2541 PUBLISHED

Micca KE700 Brute-force vulnerability due to low entropy

Assigner: ASRG
Reserved: 15.02.2026 Published: 15.02.2026 Updated: 15.02.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 6.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	Low	Confidentiality	Low
Attack Complexity	Low	Integrity	Low	Integrity	Low
Attack Requirements	None	Availability	None	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Micca Auto Electronics Co., Ltd.
Product	Car Alarm System KE700
Versions	Default: affected Version KE700 is affected Version KE700+ is unknown

Solutions

Increase entropy: The random component of the code must be significantly larger. A 16-bit keyspace is insecure by modern standards. A minimum of 64 bits of entropy would make a brute-force attack computationally infeasible.

Credits

Danilo Erazo finder

References

https://asrg.io/security-advisories/cve-2026-2541/

Problem Types

CWE-331: Insufficient Entropy CWE

Impacts

CAPEC-112: Brute Force