{"schema":"threatline.record/2","record":{"id":"CVE-2026-102027","aliases":[],"summary":"Junos OS and Junos OS Evolved: A configured BGP neighbor causes rpd crash when multipath next-hops are processed","details":"An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP neighbor to cause an rpd crash via BGP labeled-unicast UPDATEs when the affected multipath features are enabled.","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-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Junos OS","vendor":"Juniper Networks","versions":[{"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"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"24.4R2-S5-EVO","status":"affected","version":"24.4","versionType":"custom"},{"lessThan":"25.2R2-S2-EVO","status":"affected","version":"25.2","versionType":"custom"},{"lessThan":"25.4R1-S3-EVO","status":"affected","version":"25.4","versionType":"custom"},{"lessThan":"26.2R1-S2-EVO","status":"affected","version":"26.2","versionType":"custom"},{"lessThan":"25.2X100-D35-EVO","status":"affected","version":"25.2X100","versionType":"custom"},{"lessThan":"25.4X300-D40-EVO","status":"affected","version":"25.4X300","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","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-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","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-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","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-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","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"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS Evolved","ecosystem":null},"version":"24.4R2-S5-EVO","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS Evolved","ecosystem":null},"version":"25.2R2-S2-EVO","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS Evolved","ecosystem":null},"version":"25.4R1-S3-EVO","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS Evolved","ecosystem":null},"version":"26.2R1-S2-EVO","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS Evolved","ecosystem":null},"version":"25.2X100-D35-EVO","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","source_modified_at":"2026-10-16T16:35:06.948Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Junos OS Evolved","ecosystem":null},"version":"25.4X300-D40-EVO","basis":"first unaffected version stated in the CVE record"}],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.0046,"percentile":0.3894,"score_date":"2026-10-23"},"published_at":"2026-10-14T16:48:00.722Z","modified_at":"2026-10-16T16:35:06.948Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102027","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T16:35:06.948Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102027","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/JSA112187","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-16T16:34:54.210664Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-16T16:35:06.948Z","content_hash":"7f13e943dbcaa8e12d1ecfbd2f5698119f7dbf25efe6b9920306680a52a97ae9"}}