{
    "id": "CVE-2021-38389",
    "published": "2021-10-18 13:15:09",
    "last_modified": "2026-06-17 04:02:00",
    "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-121",
    "description": "Advantech WebAccess versions 9.02 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.",
    "epss_score": "0.10367",
    "epss_percentile": "0.95595",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:30",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 10.4% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "advantech",
            "product": "webaccess"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://us-cert.cisa.gov/ics/advisories/icsa-21-285-02",
        "https://us-cert.cisa.gov/ics/advisories/icsa-21-285-02"
    ]
}