{"id":"CVE-2026-63451","title":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine","summary":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transfor…","severity":"low","cvss":3.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-122"],"vendor":"OISF","product":"suricata","affected":["suricata >= 8.0.0, < 8.0.6"],"published":"2026-09-18","updated":"2026-09-21","sourceUpdated":"2026-09-21T17:17:39.777","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63451","references":[{"url":"https://github.com/OISF/suricata/commit/5449ae170bfce213907d9bab87143a59774ed48f","label":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/d62acf5d75a61b76b16815e773408852f41b1975","label":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/pull/15807","label":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","label":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-6qwq-j83r-qp34","label":"security-advisories@github.com"},{"url":"https://redmine.openinfosecfoundation.org/issues/8590","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T16:21:22.661133Z"},"epss":0.00128,"epssPercentile":0.02832,"ingestedAt":"2026-09-18T20:51:25.797Z","slug":"CVE-2026-63451","body":"## Overview\n\nSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transformed match without content can make src/detect-engine-prefilter.c select multiple non-prefilter frame engines while preparing signatures for non-prefilter inspection. Loading the crafted rule, including in test mode, can trigger a heap buffer overflow and crash Suricata; network traffic alone cannot reach the flaw. This issue is fixed in version 8.0.6.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":18,"depthScoreParts":{"impact":18.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}