{
    "id": "CVE-2018-4063",
    "published": "2019-05-06 19:29:00",
    "last_modified": "2026-06-17 01:58:18",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-434",
    "description": "An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.",
    "epss_score": "0.27059",
    "epss_percentile": "0.97981",
    "kev": 1,
    "kev_due": "2026-01-02",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:24:11",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2026-01-02."
    },
    "products": [
        {
            "vendor": "sierrawireless",
            "product": "airlink_es440"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_es450"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_gx400"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_gx440"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_gx450"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_ls300"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_lx40"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_lx60"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_mp70"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_mp70e"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_rv50"
        },
        {
            "vendor": "sierrawireless",
            "product": "airlink_rv50x"
        },
        {
            "vendor": "sierrawireless",
            "product": "aleos"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2018-4063",
        "date_added": "2025-12-12",
        "due_date": "2026-01-02",
        "vendor": "Sierra Wireless",
        "product": "AirLink ALEOS",
        "name": "Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html",
        "http://www.securityfocus.com/bid/108147",
        "https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03",
        "https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748",
        "http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html",
        "http://www.securityfocus.com/bid/108147",
        "https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03",
        "https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063",
        "https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/"
    ]
}