{"schema":"threatline.record/2","record":{"id":"CVE-2026-20043","aliases":[],"summary":"Multiple Cisco Products Snort 3 Software Hardening Release: October 2026","details":"As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-20043 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.","categories":["Network & edge"],"product":"Cisco Cyber Vision","vendor":"Cisco","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20043","source_modified_at":"2026-10-22T23:04:45.240Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco Cyber Vision","vendor":"Cisco","versions":[{"version":"3.0.0","status":"affected"},{"version":"3.0.2","status":"affected"},{"version":"3.0.3","status":"affected"},{"version":"3.0.1","status":"affected"},{"version":"3.1.0","status":"affected"},{"version":"3.0.4","status":"affected"},{"version":"3.1.1","status":"affected"},{"version":"3.1.2","status":"affected"},{"version":"3.2.0","status":"affected"},{"version":"3.0.5","status":"affected"},{"version":"3.2.1","status":"affected"},{"version":"3.0.6","status":"affected"},{"version":"3.2.2","status":"affected"},{"version":"3.2.3","status":"affected"},{"version":"3.2.4","status":"affected"},{"version":"4.0.0","status":"affected"},{"version":"4.0.1","status":"affected"},{"version":"4.0.2","status":"affected"},{"version":"4.0.3","status":"affected"},{"version":"4.1.0","status":"affected"},{"version":"4.1.1","status":"affected"},{"version":"4.1.2","status":"affected"},{"version":"4.1.3","status":"affected"},{"version":"4.1.4","status":"affected"},{"version":"4.2.0","status":"affected"},{"version":"4.2.1","status":"affected"},{"version":"4.1.5","status":"affected"},{"version":"4.2.2","status":"affected"},{"version":"4.2.X","status":"affected"},{"version":"4.2.3","status":"affected"}],"defaultStatus":"unknown"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20043","source_modified_at":"2026-10-22T23:04:45.240Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco Open Source Snort3","vendor":"Cisco","versions":[{"version":"3.12.2.0","status":"affected"},{"version":"3.1.2.0","status":"affected"},{"version":"3.1.3.0","status":"affected"},{"version":"3.1.4.0","status":"affected"},{"version":"3.1.5.0","status":"affected"},{"version":"3.1.6.0","status":"affected"},{"version":"3.1.7.0","status":"affected"},{"version":"3.1.8.0","status":"affected"},{"version":"3.1.9.0","status":"affected"},{"version":"3.1.10.0","status":"affected"},{"version":"3.1.12.0","status":"affected"},{"version":"3.1.13.0","status":"affected"},{"version":"3.1.14.0","status":"affected"},{"version":"3.1.15.0","status":"affected"},{"version":"3.1.16.0","status":"affected"},{"version":"3.1.17.0","status":"affected"},{"version":"3.1.18.0","status":"affected"},{"version":"3.1.19.0","status":"affected"},{"version":"3.1.20.0","status":"affected"},{"version":"3.1.21.0","status":"affected"},{"version":"3.1.22.0","status":"affected"},{"version":"3.1.23.0","status":"affected"},{"version":"3.1.24.0","status":"affected"},{"version":"3.1.25.0","status":"affected"},{"version":"3.1.27.0","status":"affected"},{"version":"3.1.28.0","status":"affected"},{"version":"3.1.29.0","status":"affected"},{"version":"3.1.30.0","status":"affected"},{"version":"3.1.31.0","status":"affected"},{"version":"3.1.32.0","status":"affected"}],"defaultStatus":"unknown"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20043","source_modified_at":"2026-10-22T23:04:45.240Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"version":"7.0.0","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.0.1.1","status":"affected"},{"version":"7.0.2","status":"affected"},{"version":"7.0.2.1","status":"affected"},{"version":"7.0.3","status":"affected"},{"version":"7.2.0.1","status":"affected"},{"version":"7.0.4","status":"affected"},{"version":"7.2.1","status":"affected"},{"version":"7.0.5","status":"affected"},{"version":"7.3.0","status":"affected"},{"version":"7.2.2","status":"affected"},{"version":"7.2.3","status":"affected"},{"version":"7.3.1","status":"affected"},{"version":"7.2.4","status":"affected"},{"version":"7.0.6","status":"affected"},{"version":"7.2.5","status":"affected"},{"version":"7.2.4.1","status":"affected"},{"version":"7.3.1.1","status":"affected"},{"version":"7.4.0","status":"affected"},{"version":"7.0.6.1","status":"affected"},{"version":"7.2.5.1","status":"affected"},{"version":"7.4.1","status":"affected"},{"version":"7.2.6","status":"affected"},{"version":"7.0.6.2","status":"affected"},{"version":"7.4.1.1","status":"affected"},{"version":"7.2.7","status":"affected"},{"version":"7.2.5.2","status":"affected"},{"version":"7.3.1.2","status":"affected"}],"defaultStatus":"unknown"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20043","source_modified_at":"2026-10-22T23:04:45.240Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"version":"17.3.1a","status":"affected"},{"version":"17.3.2","status":"affected"},{"version":"17.4.1a","status":"affected"},{"version":"17.5.1","status":"affected"},{"version":"17.3.3","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.3.4","status":"affected"},{"version":"17.3.4a","status":"affected"},{"version":"17.4.2","status":"affected"},{"version":"17.4.1b","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.7.1a","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.8.1a","status":"affected"},{"version":"17.3.5","status":"affected"},{"version":"17.6.3","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.7.2","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.6.4","status":"affected"},{"version":"17.10.1a","status":"affected"},{"version":"17.3.6","status":"affected"},{"version":"17.3.7","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.6.5","status":"affected"},{"version":"17.11.1a","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.12.1a","status":"affected"},{"version":"17.9.4","status":"affected"},{"version":"17.6.6","status":"affected"}],"defaultStatus":"unknown"}],"fixed_versions":[],"cvss":9,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00264,"percentile":0.17364,"score_date":"2026-10-23"},"published_at":"2026-10-21T16:12:29.730Z","modified_at":"2026-10-22T23:04:45.240Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-20043","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-22T23:04:45.240Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-20043","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-snort3-ybgmhTQe"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-21T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-22T23:04:45.240Z","content_hash":"42cac5f7688461afe9f094a915d1a9f109f6da8fd5a7e3ae3705639e4e16871c"}}