{"id":"CVE-2004-2677","url":"https://www.cyber-defence.io/tools/cve/CVE-2004-2677","generatedAt":"2026-10-27T20:51:34.005Z","title":"Format string vulnerability in qwik-smtpd.c in QwikMail SMTP (qwik-smtpd) 0.3 and earlier allows remote attackers to execute arbitrary code via format specifiers in the (1) clientRcptTo array, and the (2) Received and (3) messageID variables, possibly…","description":"Format string vulnerability in qwik-smtpd.c in QwikMail SMTP (qwik-smtpd) 0.3 and earlier allows remote attackers to execute arbitrary code via format specifiers in the (1) clientRcptTo array, and the (2) Received and (3) messageID variables, possibly involving HELO and hostname arguments.","published":"2004-12-31T05:00:00.000Z","lastModified":"2026-06-16T22:10:07.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":[],"affected":["qwikmail/qwikmail smtp"],"epss":{"score":0.06483,"percentile":0.93707,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2004-11-09","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":620,"kind":"exploit","title":"Qwik SMTP 0.3 - Format String","url":"https://www.exploit-db.com/exploits/620","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/620.c","file":"exploits/linux/remote/620.c","published":"2004-11-09","added":"2004-11-08","updated":"2016-12-05","author":"Carlos Barros","type":"remote","platform":"linux","port":25,"verified":true,"codes":["OSVDB-11303","CVE-2004-2677"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comqwik-smtpd-0.3.tar.gz","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 6.5%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://qwikmail.sourceforge.net/smtpd/qwik-smtpd-0.3.patch","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/13037","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://securitytracker.com/id?1012016","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://unl0ck.info/advisories/qwik-smtpd.txt","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/460600/100/0/threaded","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/11572","tags":["Exploit","Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.vupen.com/english/advisories/2007/0687","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/17917","source":"cve@mitre.org"},{"url":"http://qwikmail.sourceforge.net/smtpd/qwik-smtpd-0.3.patch","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/13037","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securitytracker.com/id?1012016","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://unl0ck.info/advisories/qwik-smtpd.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/460600/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/11572","tags":["Exploit","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2007/0687","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/17917","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2004-2677","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}