{
    "id": "CVE-2021-40521",
    "published": "2021-11-10 16:15:09",
    "last_modified": "2026-06-17 04:07:04",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": null,
    "description": "Airangel HSMX Gateway devices through 5.2.04 allow Remote Code Execution.",
    "epss_score": "0.04490",
    "epss_percentile": "0.91219",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-07 18:17:27",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "airangel",
            "product": "hsmx-app-100"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-100_firmware"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-1000"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-1000_firmware"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-20000"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-20000_firmware"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-25"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-25_firmware"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-5000"
        },
        {
            "vendor": "airangel",
            "product": "hsmx-app-5000_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://etizazmohsin.com/hsmx.html#rce",
        "https://airangel.com/hsmx-gateway/",
        "http://etizazmohsin.com/hsmx.html#rce",
        "https://airangel.com/hsmx-gateway/"
    ]
}