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the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).When processing a high rate of specific GRE traffic destined to the device, the respective PFE will hang causing traffic forwarding to stop. \n\n\n\nWhen this issue occurs the following logs can be observed:\n\n <fpc #> MQSS(0): LI-3: Received a parcel with more than 512B\u00a0accompanying data \nCHASSISD_FPC_ASIC_ERROR: ASIC Error detected <...>\n\n\nThis issue affects Junos OS:\n\n * all versions before 21.2R3-S9,\n * 21.4 versions before 21.4R3-S8,\n * 22.2 versions before 22.2R3-S4,\n * 22.4 versions before 22.4R3-S5,\n * 23.2 versions before 23.2R2-S2,\n * 23.4 versions before 23.4R2."}, {"lang": "es", "value": "Una vulnerabilidad de verificaci\u00f3n incorrecta de condiciones inusuales o excepcionales en el motor de reenv\u00edo de paquetes (pfe) de Juniper Networks Junos OS en la serie MX permite que un atacante no autenticado basado en la red cause una denegaci\u00f3n de servicio (DoS). Al procesar una alta tasa de tr\u00e1fico GRE espec\u00edfico destinado al dispositivo, el PFE respectivo se bloquear\u00e1, lo que provocar\u00e1 que se detenga el reenv\u00edo de tr\u00e1fico. Cuando se produce este problema, se pueden observar los siguientes registros: MQSS(0): LI-3: Se recibi\u00f3 un paquete con m\u00e1s de 512 B de datos adjuntos CHASSISD_FPC_ASIC_ERROR: Error de ASIC detectado &lt;...&gt; Este problema afecta a Junos OS: * todas las versiones anteriores a 21.2R3-S9, * versiones 21.4 anteriores a 21.4R3-S8, * versiones 22.2 anteriores a 22.2R3-S4, * versiones 22.4 anteriores a 22.4R3-S5, * versiones 23.2 anteriores a 23.2R2-S2, * versiones 23.4 anteriores a 23.4R2."}], "id": "CVE-2025-30660", "lastModified": "2026-01-23T19:35:57.027", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/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:X/V:X/RE:M/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2025-04-09T20:15:30.307", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA96471"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

{}

{"created": "2025-07-13T11:06:51.786913+00:00", "updated": "2025-07-13T11:06:51.786982+00:00", "vendors": ["juniper_networks", "juniper_networks$PRODUCT$junos_os"]}