CVE-2026-2540

HIGH

Micca KE700 - Replay Attack

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v4 8.4
EPSS 0.0001
EPSS Percentile 0.9%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-288 CWE-294
Status published
Products (2)
Micca Auto Electronics Co., Ltd./Car Alarm System KE700 KE700
Micca Auto Electronics Co., Ltd./Car Alarm System KE700 KE700+
Published Feb 15, 2026
Tracked Since Feb 18, 2026