{"api_version":"1","generated_at":"2026-09-20T07:51:35+00:00","cve":"CVE-2026-63450","urls":{"html":"https://cve.report/CVE-2026-63450","api":"https://cve.report/api/cve/CVE-2026-63450.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63450","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63450"},"summary":{"title":"Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection","description":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-09-18 21:17:04","updated_at":"2026-09-18 21:17:04"},"problem_types":["CWE-755","CWE-755 CWE-755: Improper Handling of Exceptional Conditions"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"3.7","severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"3.7","severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr","name":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/OISF/suricata/pull/15704","name":"https://github.com/OISF/suricata/pull/15704","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc","name":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","name":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://redmine.openinfosecfoundation.org/issues/8659","name":"https://redmine.openinfosecfoundation.org/issues/8659","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18","name":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63450","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63450","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"OISF","product":"suricata","version":"affected < 8.0.6","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63450","cve":"CVE-2026-63450","epss":"0.002450000","percentile":"0.160590000","score_date":"2026-09-19","updated_at":"2026-09-20 00:14:29"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"suricata","vendor":"OISF","versions":[{"status":"affected","version":"< 8.0.6"}]}],"descriptions":[{"lang":"en","value":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-755","description":"CWE-755: Improper Handling of Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-09-18T20:13:42.549Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr"},{"name":"https://github.com/OISF/suricata/pull/15704","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/pull/15704"},{"name":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18"},{"name":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc"},{"name":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":["x_refsource_MISC"],"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"},{"name":"https://redmine.openinfosecfoundation.org/issues/8659","tags":["x_refsource_MISC"],"url":"https://redmine.openinfosecfoundation.org/issues/8659"}],"source":{"advisory":"GHSA-56wx-7hqh-wfgr","discovery":"UNKNOWN"},"title":"Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-63450","datePublished":"2026-09-18T20:13:42.549Z","dateReserved":"2026-07-16T19:35:57.768Z","dateUpdated":"2026-09-18T20:13:42.549Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-18 21:17:04","lastModifiedDate":"2026-09-18 21:17:04","problem_types":["CWE-755","CWE-755 CWE-755: Improper Handling of Exceptional Conditions"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":1.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63450","Ordinal":"1","Title":"Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS","CVE":"CVE-2026-63450","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63450","Ordinal":"1","NoteData":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6.","Type":"Description","Title":"Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS"}]}}}