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            "url": "https://supportportal.juniper.net/JSA75741"
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            "url": "https://www.first.org/cvss/calculator/4.0#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"
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        "title": "CVE Program Container"
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              "content": {
                "id": "CVE-2024-21600",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-01-12T18:09:08.163929Z",
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          "dateUpdated": "2025-06-17T21:09:19.373Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "defaultStatus": "unaffected",
          "platforms": [
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            "PTX10008/16 with LC110x"
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          "product": "Junos OS",
          "vendor": "Juniper Networks",
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              "lessThan": "20.4R3-S8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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              "lessThan": "21.1R3-S4",
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              "status": "affected",
              "version": "22.1",
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              "lessThan": "22.2R2-S1, 22.2R3",
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              "version": "22.2",
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              "value": "\u003cp\u003eTo be exposed to this issue FTI need to be configured:\u003c/p\u003e\u003ccode\u003e  [ interfaces fti0 unit \u0026lt;unit\u0026gt; tunnel ... ]\u003c/code\u003e\u003cbr/\u003e"
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      "datePublic": "2024-01-10T17:00:00.000Z",
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              "value": "\n\n\u003cp\u003eAn Improper Neutralization of Equivalent Special Elements vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows a unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\u003c/p\u003e\u003cp\u003eWhen MPLS packets are meant to be sent to a flexible tunnel interface (FTI) and if the FTI tunnel is down, these will hit the reject NH, due to which the packets get sent to the CPU and cause a host path wedge condition. This will cause the FPC to hang and requires a manual restart to recover.\u003c/p\u003e\u003cp\u003ePlease note that this issue specifically affects PTX1000, PTX3000, PTX5000 with FPC3, PTX10002-60C, and PTX10008/16 with LC110x. Other PTX Series devices and Line Cards (LC) are not affected.\u003c/p\u003e\u003cp\u003eThe following log message can be seen when the issue occurs:\u003c/p\u003e\u003ccode\u003eCmerror Op Set: Host Loopback: HOST LOOPBACK WEDGE DETECTED IN PATH ID \u0026lt;id\u0026gt; (URI: /fpc/\u0026lt;fpc\u0026gt;/pfe/\u0026lt;pfe\u0026gt;/cm/\u0026lt;cm\u0026gt;/Host_Loopback/\u0026lt;cm\u0026gt;/HOST_LOOPBACK_MAKE_CMERROR_ID[\u0026lt;id\u0026gt;])\u003c/code\u003e\u003cbr\u003e\u003cp\u003eThis issue affects Juniper Networks Junos OS:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions earlier than 20.4R3-S8;\u003c/li\u003e\u003cli\u003e21.1 versions earlier than 21.1R3-S4;\u003c/li\u003e\u003cli\u003e21.2 versions earlier than 21.2R3-S6;\u003c/li\u003e\u003cli\u003e21.3 versions earlier than 21.3R3-S3;\u003c/li\u003e\u003cli\u003e21.4 versions earlier than 21.4R3-S5;\u003c/li\u003e\u003cli\u003e22.1 versions earlier than 22.1R2-S2, 22.1R3;\u003c/li\u003e\u003cli\u003e22.2 versions earlier than 22.2R2-S1, 22.2R3.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\n\n"
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          "value": "\nAn Improper Neutralization of Equivalent Special Elements vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows a unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\n\nWhen MPLS packets are meant to be sent to a flexible tunnel interface (FTI) and if the FTI tunnel is down, these will hit the reject NH, due to which the packets get sent to the CPU and cause a host path wedge condition. This will cause the FPC to hang and requires a manual restart to recover.\n\nPlease note that this issue specifically affects PTX1000, PTX3000, PTX5000 with FPC3, PTX10002-60C, and PTX10008/16 with LC110x. Other PTX Series devices and Line Cards (LC) are not affected.\n\nThe following log message can be seen when the issue occurs:\n\nCmerror Op Set: Host Loopback: HOST LOOPBACK WEDGE DETECTED IN PATH ID \u003cid\u003e (URI: /fpc/\u003cfpc\u003e/pfe/\u003cpfe\u003e/cm/\u003ccm\u003e/Host_Loopback/\u003ccm\u003e/HOST_LOOPBACK_MAKE_CMERROR_ID[\u003cid\u003e])\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions earlier than 20.4R3-S8;\n  *  21.1 versions earlier than 21.1R3-S4;\n  *  21.2 versions earlier than 21.2R3-S6;\n  *  21.3 versions earlier than 21.3R3-S3;\n  *  21.4 versions earlier than 21.4R3-S5;\n  *  22.1 versions earlier than 22.1R2-S2, 22.1R3;\n  *  22.2 versions earlier than 22.2R2-S1, 22.2R3.\n\n\n\n\n\n\n"
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              "value": "\u003cp\u003eJuniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003c/p\u003e"
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            "attackVector": "ADJACENT_NETWORK",
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            "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",
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              "cweId": "CWE-76",
              "description": "CWE-76 Improper Neutralization of Equivalent Special Elements",
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      "providerMetadata": {
        "dateUpdated": "2024-01-12T00:53:38.834Z",
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          "url": "https://supportportal.juniper.net/JSA75741"
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          "url": "https://www.first.org/cvss/calculator/4.0#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"
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              "value": "\u003cp\u003eThe following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S8, 21.1R3-S4, 21.2R3-S6, 21.3R3-S3, 21.4R3-S5, 22.1R2-S2, 22.1R3, 22.2R2-S1, 22.2R3, 22.3R1, and all subsequent releases.\u003c/p\u003e"
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          "value": "The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S8, 21.1R3-S4, 21.2R3-S6, 21.3R3-S3, 21.4R3-S5, 22.1R2-S2, 22.1R3, 22.2R2-S1, 22.2R3, 22.3R1, and all subsequent releases.\n\n"
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        "advisory": "JSA75741",
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        "discovery": "USER"
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          "time": "2024-01-10T17:00:00.000Z",
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      "title": "Junos OS: PTX Series: In an FTI scenario MPLS packets hitting reject next-hop will cause a host path wedge condition",
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              "value": "\u003cp\u003eThe issue can be prevented by configuring a limit for reject packets via:\u003c/p\u003e\u003ccode\u003e  [ system ddos-protection protocols reject aggregate bandwidth 20 ] \u003c/code\u003e\u003cbr/\u003e"
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          "value": "The issue can be prevented by configuring a limit for reject packets via:\n\n  [ system ddos-protection protocols reject aggregate bandwidth 20 ] \n"
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    "cveId": "CVE-2024-21600",
    "datePublished": "2024-01-12T00:53:38.834Z",
    "dateReserved": "2023-12-27T19:38:25.706Z",
    "dateUpdated": "2025-06-17T21:09:19.373Z",
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