{"id":"CVE-2026-63450","published":"2026-09-18T21:17:04.370","lastModified":"2026-09-23T20:17:12.723","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.","cvssScore":3.7,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cwes":["CWE-755"],"vendors":[],"products":[],"references":[{"url":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18","tags":[]},{"url":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc","tags":[]},{"url":"https://github.com/OISF/suricata/pull/15704","tags":[]},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":[]},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr","tags":[]},{"url":"https://redmine.openinfosecfoundation.org/issues/8659","tags":[]}],"exploitRefs":[{"url":"https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18","tags":[]},{"url":"https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc","tags":[]},{"url":"https://github.com/OISF/suricata/pull/15704","tags":[]},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":[]},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr","tags":[]}],"hasPoc":true,"ai":null}