{
    "id": "CVE-2018-8540",
    "published": "2018-12-12 00:29:00",
    "last_modified": "2026-06-17 02:05:03",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-94",
    "description": "A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka \".NET Framework Remote Code Injection Vulnerability.\" This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 4.7.2, Microsoft .NET Framework 4.6.2.",
    "epss_score": "0.21575",
    "epss_percentile": "0.97560",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:22",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 21.6% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": ".net_framework"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10"
        },
        {
            "vendor": "microsoft",
            "product": "windows_7"
        },
        {
            "vendor": "microsoft",
            "product": "windows_8.1"
        },
        {
            "vendor": "microsoft",
            "product": "windows_rt_8.1"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2008"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2012"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2016"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2019"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.securityfocus.com/bid/106073",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8540",
        "http://www.securityfocus.com/bid/106073",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8540"
    ]
}