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                "id": "CVE-2025-30646",
                "options": [
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              "value": "A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS).\u0026nbsp; Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\u003cbr\u003e\u003cbr\u003eWhen an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.\u003cbr\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJunos OS: \u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.2R3-S9,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 21.4 before 21.4R3-S10,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.2 before 22.2R3-S6,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3-S6,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S4,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2;\u0026nbsp;\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eJunos OS Evolved:\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.4R3-S10-EVO,\u003c/li\u003e\u003cli\u003efrom 22.2-EVO before 22.2R3-S6-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4-EVO before 22.4R3-S6-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2-EVO before 23.2R2-S3-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4-EVO before 23.4R2-S4-EVO,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 24.2-EVO before 24.2R2-EVO.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e"
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          "value": "A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS).\u00a0 Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nWhen an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.\n\n\n\nThis issue affects:\n\nJunos OS: \n\n\n  *  All versions before 21.2R3-S9,\u00a0\n  *  from 21.4 before 21.4R3-S10,\u00a0\n  *  from 22.2 before 22.2R3-S6,\u00a0\n  *  from 22.4 before 22.4R3-S6,\u00a0\n  *  from 23.2 before 23.2R2-S3,\u00a0\n  *  from 23.4 before 23.4R2-S4,\u00a0\n  *  from 24.2 before 24.2R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n  *  All versions before 21.4R3-S10-EVO,\n  *  from 22.2-EVO before 22.2R3-S6-EVO,\u00a0\n  *  from 22.4-EVO before 22.4R3-S6-EVO,\u00a0\n  *  from 23.2-EVO before 23.2R2-S3-EVO,\u00a0\n  *  from 23.4-EVO before 23.4R2-S4-EVO,\u00a0\n  *  from 24.2-EVO before 24.2R2-EVO."
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      "title": "Junos OS and Junos OS Evolved: Receipt of a malformed LLDP TLV results in l2cpd crash",
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    "assignerShortName": "juniper",
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    "dateReserved": "2025-03-24T19:34:11.320Z",
    "dateUpdated": "2025-04-09T20:39:47.342Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2025-30646\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2025-04-09T20:15:27.920\",\"lastModified\":\"2025-04-11T15:40:10.277\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS).\u00a0 Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\\n\\nWhen an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.\\n\\n\\n\\nThis issue affects:\\n\\nJunos OS: \\n\\n\\n  *  All versions before 21.2R3-S9,\u00a0\\n  *  from 21.4 before 21.4R3-S10,\u00a0\\n  *  from 22.2 before 22.2R3-S6,\u00a0\\n  *  from 22.4 before 22.4R3-S6,\u00a0\\n  *  from 23.2 before 23.2R2-S3,\u00a0\\n  *  from 23.4 before 23.4R2-S4,\u00a0\\n  *  from 24.2 before 24.2R2;\u00a0\\n\\n\\n\\n\\nJunos OS Evolved:\u00a0\\n\\n\\n\\n  *  All versions before 21.4R3-S10-EVO,\\n  *  from 22.2-EVO before 22.2R3-S6-EVO,\u00a0\\n  *  from 22.4-EVO before 22.4R3-S6-EVO,\u00a0\\n  *  from 23.2-EVO before 23.2R2-S3-EVO,\u00a0\\n  *  from 23.4-EVO before 23.4R2-S4-EVO,\u00a0\\n  *  from 24.2-EVO before 24.2R2-EVO.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de error de conversi\u00f3n de firmado a no firmado en el demonio del Protocolo de Control de Capa 2 (l2cpd) de Juniper Networks Junos OS y Juniper Networks Junos OS Evolved permite que un atacante adyacente no autenticado env\u00ede una TLV LLDP espec\u00edficamente malformada para provocar el bloqueo y reinicio del proceso l2cpd, lo que provoca una denegaci\u00f3n de servicio (DoS). La recepci\u00f3n y el procesamiento continuos de este paquete generar\u00e1n una denegaci\u00f3n de servicio (DoS) sostenida. Cuando una suscripci\u00f3n de telemetr\u00eda LLDP est\u00e1 activa, la recepci\u00f3n de una TLV LLDP espec\u00edficamente malformada provoca el bloqueo y reinicio del proceso l2cpd. Este problema afecta a: Junos OS: * Todas las versiones anteriores a 21.2R3-S9, * desde 21.4 hasta 21.4R3-S10, * desde 22.2 hasta 22.2R3-S6, * desde 22.4 hasta 22.4R3-S6, * desde 23.2 hasta 23.2R2-S3, * desde 23.4 hasta 23.4R2-S4, * desde 24.2 hasta 24.2R2; Junos OS Evolved: * Todas las versiones anteriores a 21.4R3-S10-EVO, * desde 22.2-EVO hasta 22.2R3-S6-EVO, * desde 22.4-EVO hasta 22.4R3-S6-EVO, * desde 23.2-EVO hasta 23.2R2-S3-EVO, * desde 23.4-EVO hasta 23.4R2-S4-EVO, * desde 24.2-EVO hasta 24.2R2-EVO.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"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/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:C/RE:M/U:X\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"LOW\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"YES\",\"Recovery\":\"AUTOMATIC\",\"valueDensity\":\"CONCENTRATED\",\"vulnerabilityResponseEffort\":\"MODERATE\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-195\"}]}],\"references\":[{\"url\":\"https://supportportal.juniper.net/JSA96456\",\"source\":\"sirt@juniper.net\"}]}}"
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