{"id":"CVE-2026-63450","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-63450","generatedAt":"2026-10-28T03:30:45.626Z","title":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine.","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.","published":"2026-09-18T21:17:04.000Z","lastModified":"2026-09-28T18:33:08.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-755"],"affected":["oisf/suricata"],"epss":{"score":0.00248,"percentile":0.1594,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-09-28T20:00:05.000Z","detail":{"from":"3.7","score":"5.3","severity":"MEDIUM","fromSeverity":"LOW"},"summary":"Now scored CVSS 5.3 MEDIUM (was 3.7)."}],"references":[{"url":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/pull/15704","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr","tags":["Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://redmine.openinfosecfoundation.org/issues/8659","tags":["Permissions Required"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63450","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."}