{
    "id": "CVE-2019-16871",
    "published": "2019-12-19 21:15:13",
    "last_modified": "2026-06-17 02:22:52",
    "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-290",
    "description": "Beckhoff Embedded Windows PLCs through 3.1.4024.0, and Beckhoff Twincat on Windows Engineering stations, allow an attacker to achieve Remote Code Execution (as SYSTEM) via the Beckhoff ADS protocol.",
    "epss_score": "0.05302",
    "epss_percentile": "0.92372",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-07 18:17:20",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "beckhoff",
            "product": "twincat"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2017-001.pdf",
        "https://www.ic4.be/2019/12/18/beckhoff-cve-2019-16871/#more-648",
        "https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2017-001.pdf",
        "https://www.ic4.be/2019/12/18/beckhoff-cve-2019-16871/#more-648"
    ]
}