{"api_version":"1","generated_at":"2026-07-23T11:16:21+00:00","cve":"CVE-2020-1634","urls":{"html":"https://cve.report/CVE-2020-1634","api":"https://cve.report/api/cve/CVE-2020-1634.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-1634","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1634"},"summary":{"title":"CVE-2020-1634","description":"On High-End SRX Series devices, in specific configurations and when specific networking events or operator actions occur, an SPC receiving genuine multicast traffic may core. Subsequently, all FPCs in a chassis may reset causing a Denial of Service. This issue affects both IPv4 and IPv6. This issue affects: Juniper Networks Junos OS 12.3X48 version 12.3X48-D80 and later versions prior to 12.3X48-D95 on High-End SRX Series. 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OS: High-End SRX Series: Multicast traffic might cause all FPCs to reset."},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS","version":{"version_data":[{"platform":"High-End SRX Series","version_affected":">=","version_name":"12.3X48","version_value":"12.3X48-D80"},{"platform":"High-End SRX Series","version_affected":"<","version_name":"12.3X48","version_value":"12.3X48-D95"}]}}]},"vendor_name":"Juniper Networks"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"On High-End SRX Series devices, in specific configurations and when specific networking events or operator actions occur, an SPC receiving genuine multicast traffic may core. Subsequently, all FPCs in a chassis may reset causing a Denial of Service. This issue affects both IPv4 and IPv6. This issue affects: Juniper Networks Junos OS 12.3X48 version 12.3X48-D80 and later versions prior to 12.3X48-D95 on High-End SRX Series. This issue does not affect Branch SRX Series devices."}]},"exploit":[{"lang":"eng","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"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"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Denial of Service"}]},{"description":[{"lang":"eng","value":"CWE-190 Integer Overflow or Wraparound"}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://kb.juniper.net/JSA11014","name":"https://kb.juniper.net/JSA11014"}]},"solution":[{"lang":"eng","value":"The following software releases have been updated to resolve this specific issue: 12.3X48-D95, and all subsequent releases.\n"}],"source":{"advisory":"JSA11014","defect":["1465944"],"discovery":"USER"},"work_around":[{"lang":"eng","value":"There are no viable workarounds for this issue."}]},"nvd":{"publishedDate":"2020-04-08 20:15:00","lastModifiedDate":"2021-11-22 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High-End SRX Series devices, in specific configurations and when specific networking events or operator actions occur, an SPC receiving genuine multicast traffic may core. Subsequently, all FPCs in a chassis may reset causing a Denial of Service. This issue affects both IPv4 and IPv6. This issue affects: Juniper Networks Junos OS 12.3X48 version 12.3X48-D80 and later versions prior to 12.3X48-D95 on High-End SRX Series. This issue does not affect Branch SRX Series devices.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"1634","Ordinal":"2","NoteData":"2020-04-08","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"1634","Ordinal":"3","NoteData":"2020-04-08","Type":"Other","Title":"Modified"}]}}}