{"id":"CVE-2007-4440","aliases":["EUVD-2007-4423","GHSA-4pc6-hw3m-wcr4"],"status":"published","title":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System,...","description":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.64513,"percentile":0.99244,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2007-08-21T00:00:00Z","modified":"2026-06-16T22:44:06Z","exploits":[{"source":"exploitdb","id":"EDB-16821","title":"Mercury/32 Mail SMTPD - AUTH CRAM-MD5 Buffer Overflow (Metasploit)","type":"remote","platform":"windows","date":"2010-06-22","verified":true,"url":"https://www.exploit-db.com/exploits/16821"},{"source":"exploitdb","id":"EDB-4294","title":"Mercury/32 Mail SMTPD - Remote Stack Overrun (PoC)","type":"dos","platform":"windows","date":"2007-08-18","verified":true,"url":"https://www.exploit-db.com/exploits/4294"},{"source":"exploitdb","id":"EDB-4301","title":"Mercury/32 Mail SMTPD 4.51 - SMTPD CRAM-MD5 Remote Overflow","type":"remote","platform":"windows","date":"2007-08-22","verified":true,"url":"https://www.exploit-db.com/exploits/4301"},{"source":"metasploit","id":"exploit/windows/smtp/mercury_cram_md5","title":"Mercury Mail SMTP AUTH CRAM-MD5 Buffer Overflow","type":"exploit","platform":"Windows","date":"2007-08-18","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/smtp/mercury_cram_md5"}],"products":[{"vendor":"pmail","product":"mercury_mail_transport_system"}],"references":[{"url":"http://secunia.com/advisories/26519","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2007-08/0341.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2007/2918","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/4294","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.pmail.com/m32_451.htm","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.securityfocus.com/bid/25357","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/36117","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securitytracker.com/id?1018587","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/36299","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-4440"},{"url":"https://github.com/advisories/GHSA-4pc6-hw3m-wcr4"}],"sources":{"cve":[{"id":"CVE-2007-4440","description":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.","status":"published","published":"2007-08-21T00:00:00Z","modified":"2024-08-07T14:53:55.921Z","updated_at":"2026-11-02T13:33:41.472948Z"}],"euvd":[{"id":"EUVD-2007-4423","description":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.","status":"published","published":"2007-08-21T00:00:00Z","modified":"2024-08-07T14:53:55Z","updated_at":"2026-11-03T01:16:21.520411Z"}],"ghsa":[{"id":"GHSA-4pc6-hw3m-wcr4","title":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System,...","description":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.","status":"published","published":"2022-05-01T18:23:35Z","modified":"2023-01-31T05:04:26Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:48:40.043352Z"}],"nvd":[{"id":"CVE-2007-4440","description":"Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.","status":"published","published":"2007-08-21T00:17:00Z","modified":"2026-06-16T22:44:06.13Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:19.102336Z"}]}}