{"id":"CVE-2006-3277","aliases":["EUVD-2006-3274","GHSA-r589-x22v-575x"],"status":"published","title":"The SMTP service of MailEnable Standard 1.92 and earlier, Professional 2.0 and earlier, and...","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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.06107,"percentile":0.93476,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-399"],"published":"2006-06-28T22:00:00Z","modified":"2026-06-16T22:26:45Z","exploits":[{"source":"exploitdb","id":"EDB-28103","title":"MailEnable 1.x - SMTP 'HELO' Remote Denial of Service","type":"dos","platform":"windows","date":"2006-06-24","verified":true,"url":"https://www.exploit-db.com/exploits/28103"}],"products":[{"vendor":"mailenable","product":"mailenable_enterprise"},{"vendor":"mailenable","product":"mailenable_professional"}],"references":[{"url":"http://www.mailenable.com/hotfix/mesmtpc.zip","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/27387","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://securitytracker.com/id?1016376","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2006/2520","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"http://secunia.com/advisories/20790","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.osvdb.org/26791","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.divisionbyzero.be/?p=174","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/bid/18630","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.divisionbyzero.be/?p=173","tags":["x_refsource_MISC","x_transferred","Patch"]},{"url":"http://www.securityfocus.com/archive/1/438374/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-3277"},{"url":"https://github.com/advisories/GHSA-r589-x22v-575x"}],"sources":{"cve":[{"id":"CVE-2006-3277","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.","status":"published","published":"2006-06-28T22:00:00Z","modified":"2024-08-07T18:23:20.68Z","updated_at":"2026-11-02T14:33:50.024504Z"}],"euvd":[{"id":"EUVD-2006-3274","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.","status":"published","published":"2006-06-28T22:00:00Z","modified":"2024-08-07T18:23:20Z","updated_at":"2026-11-03T01:15:57.220997Z"}],"ghsa":[{"id":"GHSA-r589-x22v-575x","title":"The SMTP service of MailEnable Standard 1.92 and earlier, Professional 2.0 and earlier, and...","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.","status":"published","published":"2022-05-01T07:07:30Z","modified":"2023-01-31T05:01:31Z","updated_at":"2026-11-02T14:48:04.351357Z"}],"nvd":[{"id":"CVE-2006-3277","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.","status":"published","published":"2006-06-28T22:05:00Z","modified":"2026-06-16T22:26:45.373Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:04.288594Z"}]}}