{
    "id": "CVE-2011-4040",
    "published": "2011-11-21 11:55:03",
    "last_modified": "2026-06-16 23:34:19",
    "cvss_score": "10.0",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-119",
    "description": "Buffer overflow in MiniSmtp 3.0.11818 in NJStar Communicator allows remote attackers to execute arbitrary code via a crafted packet.",
    "epss_score": "0.65262",
    "epss_percentile": "0.99234",
    "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": "njstar",
            "product": "njstar_communicator"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "18196",
            "title": "NJStar Communicator MiniSmtp - Buffer Overflow (ASLR Bypass)",
            "date": "2011-12-03",
            "url": "https://www.exploit-db.com/exploits/18196"
        },
        {
            "source": "exploit-db",
            "ref_id": "18057",
            "title": "NJStar Communicator 3.00 - MiniSMTP Server Remote (Metasploit)",
            "date": "2011-10-31",
            "url": "https://www.exploit-db.com/exploits/18057"
        }
    ],
    "refs_list": [
        "http://www.kb.cert.org/vuls/id/819630",
        "http://www.kb.cert.org/vuls/id/819630"
    ]
}