{
    "id": "CVE-2018-0833",
    "published": "2018-02-15 02:29:02",
    "last_modified": "2026-06-17 01:31:45",
    "cvss_score": "5.3",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "cwe": "CWE-476",
    "description": "The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka \"SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability\".",
    "epss_score": "0.39897",
    "epss_percentile": "0.98580",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:22:24",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_8.1"
        },
        {
            "vendor": "microsoft",
            "product": "windows_rt_8.1"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2012"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "44189",
            "title": "Microsoft Windows 8.1/2012 R2 - SMBv3 Null Pointer Dereference Denial of Service",
            "date": "2018-02-27",
            "url": "https://www.exploit-db.com/exploits/44189"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/102924",
        "http://www.securitytracker.com/id/1040375",
        "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833",
        "https://www.exploit-db.com/exploits/44189/",
        "http://www.securityfocus.com/bid/102924",
        "http://www.securitytracker.com/id/1040375",
        "https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833",
        "https://www.exploit-db.com/exploits/44189/"
    ]
}