{"schema":"threatline.record/2","record":{"id":"CVE-2026-103391","aliases":[],"summary":"Session Smart Router: An attacker-controlled TCP option causes an out-of-bounds write when using the TCP proxy feature","details":"An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length.","categories":["Network & edge"],"product":"Session Smart Router","vendor":"Juniper Networks","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103391","source_modified_at":"2026-10-28T16:33:32.354Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"Session Smart Router","vendor":"Juniper Networks","versions":[{"lessThan":"7.0.5","status":"affected","version":"0","versionType":"custom"},{"lessThan":"7.1.7","status":"affected","version":"7.1.0","versionType":"custom"},{"lessThan":"7.2.3","status":"affected","version":"7.2.0","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103391","source_modified_at":"2026-10-28T16:33:32.354Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"Session Smart Router","ecosystem":null},"version":"7.0.5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103391","source_modified_at":"2026-10-28T16:33:32.354Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"Session Smart Router","ecosystem":null},"version":"7.1.7","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103391","source_modified_at":"2026-10-28T16:33:32.354Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"Session Smart Router","ecosystem":null},"version":"7.2.3","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T16:33:32.354Z","modified_at":"2026-10-28T16:33:32.354Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103391","fetched_at":"2026-10-28T20:58:01.013507Z","source_modified_at":"2026-10-28T16:33:32.354Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://supportportal.juniper.net/JSA112183","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T16:33:32.354Z","content_hash":"700a63fe4cd3724fa657d4eaff4ae1246c2a57a07ad6c4f79d45ebab439ad7fe"}}