Micca KE700 Acceptance of previously used rolling codes_CVE-2026-2540

{
    "lastseen": "",
    "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.",
    "published": "2026-02-15T11:03:26.051Z",
    "modified": "2026-02-15T11:03:26.051Z",
    "type": "cve",
    "title": "Micca KE700 Acceptance of previously used rolling codes",
    "source": "ASRG",
    "references": "https://asrg.io/security-advisories/cve-2026-2540/",
    "id": "CVE-2026-2540",
    "bulletinFamily": "",
    "cwe": [
        "CWE-288",
        "CWE-294"
    ],
    "cvelist": null,
    "sourceData": "Micca Auto Electronics Co., Ltd. Car Alarm System KE700 KE700",
    "sourceHref": "",
    "cvss": {
        "score": 8.4,
        "severity": "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Car Alarm System KE700",
    "version": "KE700",
    "vendor": "Micca Auto Electronics Co., Ltd.",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}