{"id":"CVE-2026-102087","aliases":["EUVD-2026-101454","GHSA-457r-m358-cv7v"],"status":"published","title":"Junos OS and Junos OS Evolved: If in a traffic engineering scenario a specific valid BGP-LS attribute is received rpd crashes","description":"An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nWhen in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged.\n\nThis issue affects:\nJunos OS:\n\n\n  *  All versions before 23.2R2-S6;\n  *  23.4 versions before 23.4R2-S7;\n  *  24.2 versions before 24.2R2-S4;\n  *  24.4 versions before 24.4R2-S4;\n  *  25.2 versions before 25.2R1-S2, 25.2R2;\n\n\n\nJunos OS Evolved:\n  *  All versions before 23.2R2-S6-EVO;\n  *  23.4 versions before 23.4R2-S8.11-EVO;\n  *  24.2 versions before 24.2R2-S4-EVO;\n  *  24.4 versions before 24.4R2-S5-EVO;\n  *  25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00251,"percentile":0.1658,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-184"],"published":"2026-10-14T16:23:55Z","modified":"2026-10-15T16:24:19Z","products":[{"vendor":"juniper networks","product":"junos os"},{"vendor":"juniper networks","product":"junos os evolved"}],"references":[{"url":"https://supportportal.juniper.net/JSA112168","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102087"},{"url":"https://github.com/advisories/GHSA-457r-m358-cv7v"}],"sources":{"cve":[{"id":"CVE-2026-102087","title":"Junos OS and Junos OS Evolved: If in a traffic engineering scenario a specific valid BGP-LS attribute is received rpd crashes","description":"An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nWhen in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged.\n\nThis issue affects:\nJunos OS:\n\n\n  *  All versions before 23.2R2-S6;\n  *  23.4 versions before 23.4R2-S7;\n  *  24.2 versions before 24.2R2-S4;\n  *  24.4 versions before 24.4R2-S4;\n  *  25.2 versions before 25.2R1-S2, 25.2R2;\n\n\n\nJunos OS Evolved:\n  *  All versions before 23.2R2-S6-EVO;\n  *  23.4 versions before 23.4R2-S8.11-EVO;\n  *  24.2 versions before 24.2R2-S4-EVO;\n  *  24.4 versions before 24.4R2-S5-EVO;\n  *  25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;","status":"published","published":"2026-10-14T16:23:55.281Z","modified":"2026-10-14T20:26:06.313Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T13:38:54.394896Z"}],"euvd":[{"id":"EUVD-2026-101454","description":"An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nWhen in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged.\n\nThis issue affects:\nJunos OS:\n\n\n  *  All versions before 23.2R2-S6;\n  *  23.4 versions before 23.4R2-S7;\n  *  24.2 versions before 24.2R2-S4;\n  *  24.4 versions before 24.4R2-S4;\n  *  25.2 versions before 25.2R1-S2, 25.2R2;\n\n\n\nJunos OS Evolved:\n  *  All versions before 23.2R2-S6-EVO;\n  *  23.4 versions before 23.4R2-S8.11-EVO;\n  *  24.2 versions before 24.2R2-S4-EVO;\n  *  24.4 versions before 24.4R2-S5-EVO;\n  *  25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;","status":"published","published":"2026-10-14T16:23:55Z","modified":"2026-10-14T20:26:06Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","level":"high"}],"updated_at":"2026-11-02T17:27:12.294621Z"}],"ghsa":[{"id":"GHSA-457r-m358-cv7v","title":"An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of...","description":"An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nWhen in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged.\n\nThis issue affects:\nJunos OS:\n\n\n  *  All versions before 23.2R2-S6;\n  *  23.4 versions before 23.4R2-S7;\n  *  24.2 versions before 24.2R2-S4;\n  *  24.4 versions before 24.4R2-S4;\n  *  25.2 versions before 25.2R1-S2, 25.2R2;\n\n\n\nJunos OS Evolved:\n  *  All versions before 23.2R2-S6-EVO;\n  *  23.4 versions before 23.4R2-S8.11-EVO;\n  *  24.2 versions before 24.2R2-S4-EVO;\n  *  24.4 versions before 24.4R2-S5-EVO;\n  *  25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;","status":"published","published":"2026-10-14T18:32:25Z","modified":"2026-10-14T18:32:26Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T15:13:27.339015Z"}],"nvd":[{"id":"CVE-2026-102087","description":"An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nWhen in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged.\n\nThis issue affects:\nJunos OS:\n\n\n  *  All versions before 23.2R2-S6;\n  *  23.4 versions before 23.4R2-S7;\n  *  24.2 versions before 24.2R2-S4;\n  *  24.4 versions before 24.4R2-S4;\n  *  25.2 versions before 25.2R1-S2, 25.2R2;\n\n\n\nJunos OS Evolved:\n  *  All versions before 23.2R2-S6-EVO;\n  *  23.4 versions before 23.4R2-S8.11-EVO;\n  *  24.2 versions before 24.2R2-S4-EVO;\n  *  24.4 versions before 24.4R2-S5-EVO;\n  *  25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;","status":"published","published":"2026-10-14T17:18:04.8Z","modified":"2026-10-15T16:24:19.073Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T14:12:59.328869Z"}]}}