{
    "id": "CVE-2006-3277",
    "published": "2006-06-28 22:05:00",
    "last_modified": "2026-06-16 22:26:45",
    "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": "CWE-399",
    "description": "The SMTP service of MailEnable Standard 1.92 and earlier, Professional 2.0 and earlier, and Enterprise 2.0 and earlier before the MESMTPC hotfix, allows remote attackers to cause a denial of service (application crash) via a HELO command with a null byte in the argument, possibly triggering a length inconsistency or a missing argument.",
    "epss_score": "0.06107",
    "epss_percentile": "0.93203",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-30 18:17:05",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "mailenable",
            "product": "mailenable_enterprise"
        },
        {
            "vendor": "mailenable",
            "product": "mailenable_professional"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "28103",
            "title": "MailEnable 1.x - SMTP 'HELO' Remote Denial of Service",
            "date": "2006-06-24",
            "url": "https://www.exploit-db.com/exploits/28103"
        }
    ],
    "refs_list": [
        "http://secunia.com/advisories/20790",
        "http://securitytracker.com/id?1016376",
        "http://www.divisionbyzero.be/?p=173",
        "http://www.divisionbyzero.be/?p=174",
        "http://www.mailenable.com/hotfix/mesmtpc.zip",
        "http://www.osvdb.org/26791",
        "http://www.securityfocus.com/archive/1/438374/100/0/threaded",
        "http://www.securityfocus.com/bid/18630",
        "http://www.vupen.com/english/advisories/2006/2520",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/27387",
        "http://secunia.com/advisories/20790",
        "http://securitytracker.com/id?1016376",
        "http://www.divisionbyzero.be/?p=173",
        "http://www.divisionbyzero.be/?p=174",
        "http://www.mailenable.com/hotfix/mesmtpc.zip",
        "http://www.osvdb.org/26791",
        "http://www.securityfocus.com/archive/1/438374/100/0/threaded",
        "http://www.securityfocus.com/bid/18630",
        "http://www.vupen.com/english/advisories/2006/2520",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/27387"
    ]
}