{
    "id": "CVE-2018-8373",
    "published": "2018-08-15 17:29:06",
    "last_modified": "2026-06-17 02:04:43",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "cwe": "CWE-787",
    "description": "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka \"Scripting Engine Memory Corruption Vulnerability.\" This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8353, CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.",
    "epss_score": "0.61912",
    "epss_percentile": "0.99150",
    "kev": 1,
    "kev_due": "2022-04-15",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:23:14",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-04-15."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "internet_explorer"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1507"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1607"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1703"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1709"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1803"
        },
        {
            "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"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2018-8373",
        "date_added": "2022-03-25",
        "due_date": "2022-04-15",
        "vendor": "Microsoft",
        "product": "Internet Explorer Scripting Engine",
        "name": "Microsoft Scripting Engine Memory Corruption Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "http://www.securityfocus.com/bid/105037",
        "http://www.securitytracker.com/id/1041483",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8373",
        "http://www.securityfocus.com/bid/105037",
        "http://www.securitytracker.com/id/1041483",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8373",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8373"
    ]
}