{
    "id": "CVE-2021-20125",
    "published": "2021-10-13 16:15:07",
    "last_modified": "2026-06-17 03:33:18",
    "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": "CWE-22",
    "description": "An arbitrary file upload and directory traversal vulnerability exists in the file upload functionality of DownloadFileServlet in Draytek VigorConnect 1.6.0-B3. An unauthenticated attacker could leverage this vulnerability to upload files to any location on the target operating system with root privileges.",
    "epss_score": "0.03948",
    "epss_percentile": "0.90138",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-08 18:17:26",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "draytek",
            "product": "vigorconnect"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://www.tenable.com/security/research/tra-2021-42",
        "https://www.tenable.com/security/research/tra-2021-42"
    ]
}