{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-102087", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2026-09-28T17:37:38.548Z", "datePublished": "2026-10-14T16:23:55.281Z", "dateUpdated": "2026-10-14T20:26:06.313Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Junos OS", "vendor": "Juniper Networks", "versions": [ { "lessThan": "23.2R2-S6", "status": "affected", "version": "0", "versionType": "custom" }, { "lessThan": "23.4R2-S7", "status": "affected", "version": "23.4", "versionType": "custom" }, { "lessThan": "24.2R2-S4", "status": "affected", "version": "24.2", "versionType": "custom" }, { "lessThan": "24.4R2-S4", "status": "affected", "version": "24.4", "versionType": "custom" }, { "lessThan": "25.2R1-S2, 25.2R2", "status": "affected", "version": "25.2", "versionType": "custom" } ] }, { "defaultStatus": "unaffected", "product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [ { "lessThan": "23.2R2-S6-EVO", "status": "affected", "version": "0", "versionType": "custom" }, { "lessThan": "23.4R2-S8.11-EVO", "status": "affected", "version": "23.4", "versionType": "custom" }, { "lessThan": "24.2R2-S4-EVO", "status": "affected", "version": "24.2", "versionType": "custom" }, { "lessThan": "24.4R2-S5-EVO", "status": "affected", "version": "24.4", "versionType": "custom" }, { "lessThan": "25.2R1-S2-EVO, 25.2R2-EVO", "status": "affected", "version": "25.2", "versionType": "custom" } ] } ], "configurations": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "To be exposed to this issue the system needs to be configured with:

[ protocols bgp ... family traffic-engineering ]

[ policy-options policy-statement <name> from family traffic-engineering ]
\n\n[ policy-options policy-statement <name> from family traffic-engineering then accept ]
[ protocols mpls traffic-engineering database export policy <name> ]

" } ], "value": "To be exposed to this issue the system needs to be configured with:\n\n[ protocols bgp ... family traffic-engineering ]\n\n[ policy-options policy-statement  from family traffic-engineering ]\n\n\n[ policy-options policy-statement from family traffic-engineering then accept ]\n[ protocols mpls traffic-engineering database export policy ]" } ], "datePublic": "2026-10-14T16:00:00.000Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "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).

When 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.


This issue affects:
Junos OS:

  • All versions before 23.2R2-S6;
  • 23.4 versions before 23.4R2-S7;
  • 24.2 versions before 24.2R2-S4;
  • 24.4 versions before 24.4R2-S4;
  • 25.2 versions before 25.2R1-S2, 25.2R2;

Junos OS Evolved:
  • All versions before 23.2R2-S6-EVO;
  • 23.4 versions before 23.4R2-S8.11-EVO;
  • 24.2 versions before 24.2R2-S4-EVO;
  • 24.4 versions before 24.4R2-S5-EVO;
  • 25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;

" } ], "value": "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;" } ], "exploits": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] }, { "cvssV4_0": { "Automatable": "YES", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "baseScore": 7.1, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-184", "description": "CWE-184 Incomplete Blacklist", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2026-10-14T16:23:55.281Z" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://supportportal.juniper.net/JSA112168" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "The following software releases have been updated to resolve this specific issue:\n
\nJunos OS: 23.2R2-S6, 23.4R2-S7, 24.2R2-S4, 24.4R2-S4, 25.2R1-S2, 25.2R2, 25.4R1, and all subsequent releases;
Junos OS Evolved: 23.2R2-S6-EVO, 23.4R2-S8.11-EVO, 24.2R2-S4-EVO, 24.4R2-S5-EVO, 25.2R1-S2-EVO, 25.2R2-EVO, 25.4R1-EVO, and all subsequent releases.
\n\n\n\nNote: For Junos OS releases 23.2, 23.4, and 24.2, and Junos OS Evolved releases 23.2-EVO, 23.4-EVO, and 24.2-EVO, specific respins have been referenced. Previously published versions of these releases have been rebuilt to resolve the security vulnerabilities identified in this advisory.\n\n\n\n
" } ], "value": "The following software releases have been updated to resolve this specific issue:\n\n\nJunos OS: 23.2R2-S6, 23.4R2-S7, 24.2R2-S4, 24.4R2-S4, 25.2R1-S2, 25.2R2, 25.4R1, and all subsequent releases;\nJunos OS Evolved: 23.2R2-S6-EVO, 23.4R2-S8.11-EVO, 24.2R2-S4-EVO, 24.4R2-S5-EVO, 25.2R1-S2-EVO, 25.2R2-EVO, 25.4R1-EVO, and all subsequent releases.\n\n\n\n\nNote: For Junos OS releases 23.2, 23.4, and 24.2, and Junos OS Evolved releases 23.2-EVO, 23.4-EVO, and 24.2-EVO, specific respins have been referenced. Previously published versions of these releases have been rebuilt to resolve the security vulnerabilities identified in this advisory." } ], "source": { "advisory": "JSA112168", "defect": [ "1908614" ], "discovery": "USER" }, "title": "Junos OS and Junos OS Evolved: If in a traffic engineering scenario a specific valid BGP-LS attribute is received rpd crashes", "workarounds": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "There are no known workarounds for this issue." } ], "value": "There are no known workarounds for this issue." } ], "x_generator": { "engine": "Vulnogram 0.1.0-dev" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-102087", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-10-14T20:16:18.843641Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T20:26:06.313Z" } } ] } }