{
    "id": "CVE-2021-34458",
    "published": "2021-07-16 21:15:09",
    "last_modified": "2026-08-10 16:17:47",
    "cvss_score": "9.9",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
    "cwe": null,
    "description": "Windows Kernel Remote Code Execution Vulnerability",
    "epss_score": "0.02625",
    "epss_percentile": "0.85104",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-13 18:17:28",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.9), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_server_2016"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2019"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34458",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34458"
    ]
}