{
    "id": "CVE-2002-1561",
    "published": "2003-04-02 05:00:00",
    "last_modified": "2026-06-16 21:59:33",
    "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": "The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference.",
    "epss_score": "0.37730",
    "epss_percentile": "0.98496",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:14:14",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_2000"
        },
        {
            "vendor": "microsoft",
            "product": "windows_2000_terminal_services"
        },
        {
            "vendor": "microsoft",
            "product": "windows_nt"
        },
        {
            "vendor": "microsoft",
            "product": "windows_xp"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "21951",
            "title": "Microsoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (1)",
            "date": "2002-10-22",
            "url": "https://www.exploit-db.com/exploits/21951"
        },
        {
            "source": "exploit-db",
            "ref_id": "21952",
            "title": "Microsoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (2)",
            "date": "2002-10-22",
            "url": "https://www.exploit-db.com/exploits/21952"
        },
        {
            "source": "exploit-db",
            "ref_id": "21953",
            "title": "Microsoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (3)",
            "date": "2002-10-18",
            "url": "https://www.exploit-db.com/exploits/21953"
        },
        {
            "source": "exploit-db",
            "ref_id": "21954",
            "title": "Microsoft Windows XP/2000/NT 4.0 - RPC Service Denial of Service (4)",
            "date": "2002-10-18",
            "url": "https://www.exploit-db.com/exploits/21954"
        }
    ],
    "refs_list": [
        "http://www.kb.cert.org/vuls/id/261537",
        "http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0",
        "http://www.securityfocus.com/bid/6005",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59",
        "http://www.kb.cert.org/vuls/id/261537",
        "http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0",
        "http://www.securityfocus.com/bid/6005",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59"
    ]
}