{"id":"CVE-2026-45765","summary":"Suricata dnp3: unbounded reassembly can lead to resource exhaustion","details":"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 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).","aliases":["GHSA-m8x4-c78g-r4vj"],"modified":"2026-10-28T02:30:47.023076236Z","published":"2026-09-10T21:25:22.867Z","related":["openSUSE-SU-2026:10885-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-400","CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45765.json"},"references":[{"type":"WEB","url":"https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"},{"type":"WEB","url":"https://redmine.openinfosecfoundation.org/issues/8460"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45765.json"},{"type":"ADVISORY","url":"https://github.com/OISF/suricata/security/advisories/GHSA-m8x4-c78g-r4vj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45765"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"21ec99aa76cc5406007ce12a4891f2eaedb02291"},{"fixed":"534864353e8d6e5d50991546f96e33f547879aec"},{"introduced":"9956286fb89f9cad9e9f95b99dc751f8666617b7"},{"fixed":"5611b60c6172fe4204cd69a9c9d466b6632dd0c7"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"7.0.0"},{"fixed":"7.0.16"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*"},{"range":[{"introduced":"8.0.0"},{"fixed":"8.0.5"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*"}]}}],"versions":["suricata-8.0.4","suricata-7.0.15","suricata-7.0.14","suricata-8.0.3","suricata-8.0.2","suricata-7.0.13","suricata-7.0.12","suricata-8.0.1","suricata-8.0.0","suricata-7.0.11","suricata-7.0.10","suricata-7.0.9","suricata-7.0.8","suricata-7.0.7","suricata-7.0.6","suricata-7.0.5","suricata-7.0.4","suricata-7.0.3","suricata-7.0.2","suricata-7.0.1","suricata-7.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45765.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}