{"id":"CVE-2026-119567","state":"PUBLISHED","title":"vsftpd through 3.0.5 cmds_denied Bypass via RFC 775 Command Aliases","description":"vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can send XRMD, XMKD, XCWD, XPWD, or XCUP to perform blocked operations like deleting directories.","publishedAt":"2026-10-30T11:31:13.756Z","updatedAt":"2026-10-30T11:31:13.756Z","severity":{"score":2.3,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["vsftpd vsftpd"],"affected":[{"vendor":"vsftpd","product":"vsftpd","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.0.5","versionType":"semver"}]}],"references":["https://abraxaslabs.tech/research/vsftpd-cmds-denied-alias","https://security.appspot.com/vsftpd.html","https://www.vulncheck.com/advisories/vsftpd-through-3.0.5-cmds-denied-bypass-via-rfc-775-command-aliases"],"weaknesses":["CWE-184"],"ingestedAt":"2026-10-30T11:38:06.457Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119567.json","commit":"caad128d12b89565fbbe034f6027c5d022a3f402","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119567","state":"PUBLISHED","datePublished":"2026-10-30T11:31:13.756Z","dateUpdated":"2026-10-30T11:31:13.756Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-30T10:53:32.356Z"},"containers":{"cna":{"title":"vsftpd through 3.0.5 cmds_denied Bypass via RFC 775 Command Aliases","descriptions":[{"lang":"en","value":"vsftpd through 3.0.5 contains an access control bypass vulnerability that allows authenticated FTP users to execute denied commands by issuing RFC 775 X-prefixed aliases. The cmds_denied check in process_post_login() compares literal tokens, so attackers can send XRMD, XMKD, XCWD, XPWD, or XCUP to perform blocked operations like deleting directories."}],"affected":[{"vendor":"vsftpd","product":"vsftpd","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.0.5","versionType":"semver"}]}],"references":[{"url":"https://abraxaslabs.tech/research/vsftpd-cmds-denied-alias","tags":["third-party-advisory"]},{"url":"https://security.appspot.com/vsftpd.html","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/vsftpd-through-3.0.5-cmds-denied-bypass-via-rfc-775-command-aliases","name":"VulnCheck Advisory: vsftpd through 3.0.5 cmds_denied Bypass via RFC 775 Command Aliases","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2.3,"baseSeverity":"LOW"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-184","lang":"en","description":"Incomplete List of Disallowed Inputs","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-30T11:31:13.756Z"},"datePublic":"2026-10-12T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:vsftpd_project:vsftpd:*:*:*:*:*:*:*:*","versionEndIncluding":"3.0.5"}]}]}],"credits":[{"lang":"en","value":"Abraxas Labs","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}