CVE-2026-2540CWE-288CWE-294

Micca KE700 Acceptance of previously used rolling codes

High · published February 15, 2026

CVSS v4.0
8.4
EPSS
0%
Percentile
11.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.4 · HIGH
Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:H/V:D/RE:M
EPSS
0.00220 · 11.9th percentile
Weaknesses
CWE-288 · Authentication Bypass Using an Alternate Path or Channel; CWE-294 · Authentication Bypass by Capture-replay
Published
2026-02-15T11:03Z
EPSS history
Timeline
  • 15 FEB 11:03Z
    Micca KE700 Acceptance of previously used rolling codes
    cvelistv5