{"id":"CVE-2006-6564","url":"https://www.cyber-defence.io/tools/cve/CVE-2006-6564","generatedAt":"2026-10-27T21:45:44.818Z","title":"FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a malformed argument to the STOR command, which results in a NULL pointer dereference.","description":"FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a malformed argument to the STOR command, which results in a NULL pointer dereference.  NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command.","published":"2006-12-15T11:28:00.000Z","lastModified":"2026-06-16T22:33:23.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":4,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P"},"cwe":[],"affected":["filezilla/filezilla"],"epss":{"score":0.06071,"percentile":0.93342,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2006-12-09","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":2914,"kind":"exploit","title":"FileZilla FTP Server 0.9.21 - 'LIST/NLST' Denial of Service","url":"https://www.exploit-db.com/exploits/2914","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/2914.php","file":"exploits/windows/dos/2914.php","published":"2006-12-11","added":"2006-12-10","updated":"2016-09-16","author":"shinnai","type":"dos","platform":"windows","port":null,"verified":true,"codes":["OSVDB-34435","CVE-2006-6565","CVE-2006-6564"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comFileZilla_Server-0_9_21.exe","screenshotUrl":null,"referenceUrl":"http://retrogod.altervista.org/filezilla_0921_dos.html"},{"edbId":2901,"kind":"exploit","title":"FileZilla FTP Server 0.9.20b/0.9.21 - 'STOR' Denial of Service","url":"https://www.exploit-db.com/exploits/2901","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/2901.php","file":"exploits/windows/dos/2901.php","published":"2006-12-09","added":"2006-12-08","updated":"2016-09-16","author":"rgod","type":"dos","platform":"windows","port":null,"verified":true,"codes":["CVE-2006-6564"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comFileZilla_Server-0_9_21.exe","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"high","text":"2 public exploits are published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 6.1%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://retrogod.altervista.org/filezilla_0921_dos.html","source":"cve@mitre.org"},{"url":"http://sourceforge.net/project/shownotes.php?release_id=470364&group_id=21558","source":"cve@mitre.org"},{"url":"http://www.vupen.com/english/advisories/2006/4937","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/30853","source":"cve@mitre.org"},{"url":"http://retrogod.altervista.org/filezilla_0921_dos.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://sourceforge.net/project/shownotes.php?release_id=470364&group_id=21558","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2006/4937","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/30853","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2006-6564","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."}