{"schema":"threatline.record/2","record":{"id":"CVE-2026-102078","aliases":[],"summary":"Junos OS: SRX Series: A high volume of DNS traffic over TCP can lead to a flowd crash","details":"A Use After Free vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).\n\n\n\nWhen web filtering for TCP traffic is configured, a high volume of DNS requests increases the likelihood of a flowd crash and restart, which leads to a complete service outage until the service has automatically recovered. This is a race condition outside the attacker's direct control.\n\nThis issue affects Junos OS on SRX Series:\n\n\n  *  All versions before 23.2R2-S5;\n  *  from 23.4 before 23.4R2-S6;\n  *  from 24.2 before 24.2R2-S3;\n  *  from 24.4 before 24.4R2-S1;\n  *  from 25.2 before 25.2R1-S1, 25.2R2.","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-2026-102078","source_modified_at":"2026-10-14T20:26:05.668Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"23.2R2-S5","status":"affected","version":"0","versionType":"custom"},{"lessThan":"23.4R2-S6","status":"affected","version":"23.4","versionType":"custom"},{"lessThan":"24.2R2-S3","status":"affected","version":"24.2","versionType":"custom"},{"lessThan":"24.4R2-S1","status":"affected","version":"24.4","versionType":"custom"},{"lessThan":"25.2R1-S1, 25.2R2","status":"affected","version":"25.2","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102078","source_modified_at":"2026-10-14T20:26:05.668Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"23.2R2-S5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102078","source_modified_at":"2026-10-14T20:26:05.668Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"23.4R2-S6","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102078","source_modified_at":"2026-10-14T20:26:05.668Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"24.2R2-S3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102078","source_modified_at":"2026-10-14T20:26:05.668Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"24.4R2-S1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102078","source_modified_at":"2026-10-14T20:26:05.668Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS","ecosystem":null},"version":"25.2R1-S1, 25.2R2","basis":"first unaffected version stated in the CVE record"}],"cvss":5.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00328,"percentile":0.24744,"score_date":"2026-10-23"},"published_at":"2026-10-14T16:27:24.894Z","modified_at":"2026-10-14T20:26:05.668Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102078","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T20:26:05.668Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102078","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/JSA112181","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":"partial","assessed_at":"2026-10-14T20:16:05.472965Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-14T20:26:05.668Z","content_hash":"9012b8772df4f6a1a15271e15be0fe383b63fc5a5f8ecec392805e8581528035"}}