{"id":"CVE-2026-45765","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. Prior to versions 7.0.16 and 8.0.5, DNP3 reassembly could buffer data without sufficient parser-level bounds. Crafted D…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400","CWE-770"],"vendor":"oisf","product":"suricata","affected":["suricata >= 7.0.0, < 7.0.16","suricata >= 8.0.0, < 8.0.5"],"patched":["suricata 8.0.5"],"published":"2026-09-10","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:18:06.230","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45765","references":[{"url":"https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315","label":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-m8x4-c78g-r4vj","label":"security-advisories@github.com"},{"url":"https://redmine.openinfosecfoundation.org/issues/8460","label":"security-advisories@github.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45765.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-45765"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45765"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45765"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"epss":0.00432,"epssPercentile":0.36848,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-11T17:41:01.835861Z"},"ingestedAt":"2026-09-14T00:35:28.535Z","slug":"CVE-2026-45765","body":"## Overview\n\nSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, DNP3 reassembly could buffer data without sufficient parser-level bounds. Crafted DNP3 traffic may cause Suricata to consume excessive memory, potentially resulting in denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable DNP3 (which is not enabled by default) if it is not needed, and/or define a limited `stream.reassembly.depth` (0 or absent is unlimited).\n\n## Affected\n\n- `suricata >= 7.0.0, < 7.0.16`\n- `suricata >= 8.0.0, < 8.0.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `suricata 8.0.5`\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45765.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}