{
    "id": "CVE-2001-1244",
    "published": "2001-07-07 04:00:00",
    "last_modified": "2026-06-16 21:55:53",
    "cvss_score": "5.0",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
    "cwe": null,
    "description": "Multiple TCP implementations could allow remote attackers to cause a denial of service (bandwidth and CPU exhaustion) by setting the maximum segment size (MSS) to a very small number and requesting large amounts of data, which generates more packets with less TCP-level data that amplify network traffic and consume more server CPU to process.",
    "epss_score": "0.21965",
    "epss_percentile": "0.97585",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:03",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "freebsd",
            "product": "freebsd"
        },
        {
            "vendor": "hp",
            "product": "hp-ux"
        },
        {
            "vendor": "hp",
            "product": "vvos"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "microsoft",
            "product": "windows_2000"
        },
        {
            "vendor": "microsoft",
            "product": "windows_nt"
        },
        {
            "vendor": "netbsd",
            "product": "netbsd"
        },
        {
            "vendor": "openbsd",
            "product": "openbsd"
        },
        {
            "vendor": "sun",
            "product": "sunos"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "20997",
            "title": "HP-UX 11 / Linux Kernel 2.4 / Windows 2000/NT 4.0 / IRIX 6.5 - Small TCP MSS Denial of Service",
            "date": "2001-07-07",
            "url": "https://www.exploit-db.com/exploits/20997"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/archive/1/195457",
        "http://www.securityfocus.com/bid/2997",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/6824",
        "http://www.securityfocus.com/archive/1/195457",
        "http://www.securityfocus.com/bid/2997",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/6824"
    ]
}