{
    "id": "CVE-2021-20123",
    "published": "2021-10-13 16:15:07",
    "last_modified": "2026-06-17 03:33:18",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
    "cwe": "CWE-22",
    "description": "A local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 in the file download functionality of the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.",
    "epss_score": "0.90234",
    "epss_percentile": "0.99796",
    "kev": 1,
    "kev_due": "2024-09-24",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:28:17",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-09-24."
    },
    "products": [
        {
            "vendor": "draytek",
            "product": "vigorconnect"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-20123",
        "date_added": "2024-09-03",
        "due_date": "2024-09-24",
        "vendor": "DrayTek",
        "product": "VigorConnect",
        "name": "Draytek VigorConnect Path Traversal Vulnerability ",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://www.tenable.com/security/research/tra-2021-42",
        "https://www.tenable.com/security/research/tra-2021-42",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20123"
    ]
}