Lack of MQTT Broker Topic Access Control Lists_CVE-2026-49186

{
    "lastseen": "",
    "description": "The local MQTT broker does not enforce topic-level Access Control Lists (ACLs). This allows any client to subscribe using wildcard characters (# or +) to enumerate hidden network devices or publish rogue control commands.",
    "published": "2026-06-04T03:36:59.864Z",
    "modified": "2026-06-04T03:36:59.864Z",
    "type": "cve",
    "title": "Lack of MQTT Broker Topic Access Control Lists",
    "source": "Acer",
    "references": "https://community.acer.com/en/kb/articles/19707",
    "id": "CVE-2026-49186",
    "bulletinFamily": "",
    "cwe": [
        "CWE-287"
    ],
    "cvelist": null,
    "sourceData": "Acer Connect M6E 5G Portable WiFi Router *",
    "sourceHref": "",
    "cvss": {
        "score": 8.6,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "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": "Connect M6E 5G Portable WiFi Router",
    "version": "*",
    "vendor": "Acer",
    "ai_description": "MQTT broker lacks topic-level Access Control Lists, allowing unauthorized access and control",
    "ai_severity": "High",
    "ai_vendor": "Acer",
    "ai_product": "Connect M6E 5G Portable WiFi Router",
    "ai_version": "*",
    "ai_score": 8.6
}