CVE-2026-102087 (GCVE-0-2026-102087)
Vulnerability from cvelistv5
Published
2026-10-14 16:23
Modified
2026-10-14 20:26
CWE
Summary
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;
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Version: 0   < 23.2R2-S6
Version: 23.4   < 23.4R2-S7
Version: 24.2   < 24.2R2-S4
Version: 24.4   < 24.4R2-S4
Version: 25.2   < 25.2R1-S2, 25.2R2
Create a notification for this product.
   Juniper Networks Junos OS Evolved Version: 0   < 23.2R2-S6-EVO
Version: 23.4   < 23.4R2-S8.11-EVO
Version: 24.2   < 24.2R2-S4-EVO
Version: 24.4   < 24.4R2-S5-EVO
Version: 25.2   < 25.2R1-S2-EVO, 25.2R2-EVO
Create a notification for this product.
Show details on NVD website


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                "id": "CVE-2026-102087",
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                "timestamp": "2026-10-14T20:16:18.843641Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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              "value": "To be exposed to this issue the system needs to be configured with:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e[ protocols bgp ... family traffic-engineering ]\u003cbr\u003e\u003cbr\u003e[ policy-options\u0026nbsp;policy-statement \u0026lt;name\u0026gt;\u0026nbsp;from\u0026nbsp;family traffic-engineering ]\u003cbr\u003e\n\n[ policy-options policy-statement \u0026lt;name\u0026gt; from family traffic-engineering then accept ]\u003cbr\u003e[ protocols mpls\u0026nbsp;traffic-engineering\u0026nbsp;database export\u0026nbsp;policy \u0026lt;name\u0026gt; ]\u003cbr\u003e\u003cbr\u003e\u003c/tt\u003e"
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              "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).\u003cbr\u003e\u003cbr\u003eWhen 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.\u003cbr\u003e\u003cp\u003e\u003cbr\u003eThis issue affects:\u003cbr\u003eJunos OS:\u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 23.2R2-S6;\u003c/li\u003e\u003cli\u003e23.4 versions before 23.4R2-S7;\u003c/li\u003e\u003cli\u003e24.2 versions before 24.2R2-S4;\u003c/li\u003e\u003cli\u003e24.4 versions before 24.4R2-S4;\u003c/li\u003e\u003cli\u003e25.2 versions before 25.2R1-S2, 25.2R2;\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003eJunos OS Evolved:\u003cbr\u003e\u003cul\u003e\u003cli\u003eAll versions before 23.2R2-S6-EVO;\u003c/li\u003e\u003cli\u003e23.4 versions before 23.4R2-S8.11-EVO;\u003c/li\u003e\u003cli\u003e24.2 versions before 24.2R2-S4-EVO;\u003c/li\u003e\u003cli\u003e24.4 versions before 24.4R2-S5-EVO;\u003c/li\u003e\u003cli\u003e25.2 versions before 25.2R1-S2-EVO, 25.2R2-EVO;\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003e\u003cp\u003e\u003c/p\u003e"
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            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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              "value": "The following software releases have been updated to resolve this specific issue:\n\u003cbr\u003e\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;\u003cbr\u003eJunos 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.\u003cbr\u003e\n\n\u003cb\u003e\u003c/b\u003e\n\n\u003cb\u003eNote:\u003c/b\u003e 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\u003cbr\u003e"
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    "assignerShortName": "juniper",
    "cveId": "CVE-2026-102087",
    "datePublished": "2026-10-14T16:23:55.281Z",
    "dateReserved": "2026-09-28T17:37:38.548Z",
    "dateUpdated": "2026-10-14T20:26:06.313Z",
    "state": "PUBLISHED"
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