{"schema":"threatline.record/2","record":{"id":"CVE-2026-103994","aliases":[],"summary":"Junos OS: A crafted OVSDB message crashes vgd and allows remote code execution","details":"A Heap-based Buffer Overflow vulnerability in the VXLAN Gateway Daemon (vgd) of Juniper Networks Junos OS allows a malicious or compromised SDN-controller to cause a complete outage of the OVSDB control plane and possibly remote code execution.","categories":["Network & edge"],"product":"Junos OS","vendor":"Juniper Networks","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"23.2R2-S7.7","status":"affected","version":"0","versionType":"custom"},{"lessThan":"23.4R2-S8.13","status":"affected","version":"23.4","versionType":"custom"},{"lessThan":"24.2R2-S5.5","status":"affected","version":"24.2","versionType":"custom"},{"lessThan":"24.4R2-S5","status":"affected","version":"24.4","versionType":"custom"},{"lessThan":"25.2R2-S2","status":"affected","version":"25.2","versionType":"custom"},{"lessThan":"25.4R1-S3","status":"affected","version":"25.4","versionType":"custom"},{"lessThan":"26.2R1-S2","status":"affected","version":"26.2","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"23.2R2-S7.7","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"23.4R2-S8.13","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"24.2R2-S5.5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"24.4R2-S5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"25.2R2-S2","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"25.4R1-S3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","source_modified_at":"2026-10-15T03:57:20.000Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"26.2R1-S2","basis":"first unaffected version stated in the CVE record"}],"cvss":8.8,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00428,"percentile":0.36051,"score_date":"2026-10-23"},"published_at":"2026-10-14T16:16:02.937Z","modified_at":"2026-10-15T03:57:20.000Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103994","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T03:57:20.000Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-103994","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://supportportal.juniper.net/JSA112188","tags":["vendor-advisory"]}],"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":"2026-10-14T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-15T03:57:20.000Z","content_hash":"a78c56c68b7ccdb1c0c86590d46f3ddc3e6f7229806ddf53f6447e700371024a"}}