{
    "id": "CVE-2011-2013",
    "published": "2011-11-08 21:55:01",
    "last_modified": "2026-06-16 23:30:36",
    "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-189",
    "description": "Integer overflow in the TCP/IP implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code by sending a sequence of crafted UDP packets to a closed port, aka \"Reference Counter Overflow Vulnerability.\"",
    "epss_score": "0.32335",
    "epss_percentile": "0.98274",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:10",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_7"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2008"
        },
        {
            "vendor": "microsoft",
            "product": "windows_vista"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "36285",
            "title": "Microsoft Windows - TCP/IP Stack Reference Counter Integer Overflow (MS11-083)",
            "date": "2011-11-08",
            "url": "https://www.exploit-db.com/exploits/36285"
        }
    ],
    "refs_list": [
        "http://www.securitytracker.com/id?1026290",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-083",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13877",
        "http://www.securitytracker.com/id?1026290",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-083",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13877"
    ]
}