CVE-2026-2540

EUVD-2026-5831 · Published Feb 15, 2026

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.

Weaknesses

CWE-288CWE-294

CVSS scores

v4.08.4CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:D/RE:M/U:X

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Persistence Stealth Defense Impairment Credential Access Discovery

T1083File and Directory Discovery T1211Exploitation for Stealth T1542.002Component Firmware T1556Modify Authentication Process

References

https://asrg.io/security-advisories/cve-2026-2540/

Potentially impacted assets

See if this affects your attack surface