{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2020-1640", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2020-1640", "idYear": 2020, "status": "PUBLISHED", "publishedAt": "2020-07-17T18:40:39.028Z", "updatedAt": "2024-09-16T22:24:44.430Z", "importedAt": "2026-10-24T01:56:17.081Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "Junos OS: Receipt of certain genuine BGP packets from any BGP Speaker causes RPD to crash.", "summary": "An improper use of a validation framework when processing incoming genuine BGP packets within Juniper Networks RPD (routing protocols process) daemon allows an attacker to crash RPD thereby causing a Denial of Service (DoS) condition. This framework requires these packets to be passed. By continuously sending any of these types of formatted genuine packets, an attacker can repeatedly crash the RPD process causing a sustained Denial of Service. Authentication to the BGP peer is not required. This issue can be initiated or propagated through eBGP and iBGP and can impact devices in either modes of use as long as the devices are configured to support the compromised framework and a BGP path is activated or active. This issue affects: Juniper Networks Junos OS 16.1 versions 16.1R7-S6 and later versions prior to 16.1R7-S8; 17.3 versions 17.3R2-S5, 17.3R3-S6 and later versions prior to 17.3R3-S8; 17.4 versions 17.4R2-S7, 17.4R3 and later versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions 18.1R3-S7 and later versions prior to 18.1R3-S10; 18.2 versions 18.2R2-S6, 18.2R3-S2 and later versions prior to 18.2R2-S7, 18.2R3-S5; 18.2X75 versions 18.2X75-D12, 18.2X75-D32, 18.2X75-D33, 18.2X75-D51, 18.2X75-D60, 18.2X75-D411, 18.2X75-D420 and later versions prior to 18.2X75-D32, 18.2X75-D33, 18.2X75-D420, 18.2X75-D52, 18.2X75-D60, 18.2X75-D65, 18.2X75-D70;(*1) 18.3 versions 18.3R1-S6, 18.3R2-S3, 18.3R3 and later versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions 18.4R1-S5, 18.4R2-S4, 18.4R3 and later versions prior to 18.4R1-S7, 18.4R2-S5, 18.4R3-S3(*2); 19.1 versions 19.1R1-S3, 19.1R2 and later versions prior to 19.1R1-S5, 19.1R2-S2, 19.1R3-S2; 19.2 versions 19.2R1-S2, 19.2R2 and later versions prior to 19.2R1-S5, 19.2R2, 19.2R3; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S2, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S1, 20.1R2. This issue does not affect Junos OS prior to 16.1R1. This issue affects IPv4 and IPv6 traffic.", "affected": [ { "vendor": "Juniper Networks", "product": "Junos OS", "versions": [ { "version": "16.1R7-S6", "status": "affected", "versionType": "custom", "lessThan": "16.1*", "changes": [ { "at": "16.1R7-S8", "status": "unaffected" } ] }, { "version": "17.3R2-S5, 17.3R3-S6", "status": "affected", "versionType": "custom", "lessThan": "17.3*", "changes": [ { "at": "17.3R3-S8", "status": "unaffected" } ] }, { "version": "17.4R2-S7, 17.4R3", "status": "affected", "versionType": "custom", "lessThan": "17.4*", "changes": [ { "at": "17.4R2-S11, 17.4R3-S2", "status": "unaffected" } ] }, { "version": "18.1R3-S7", "status": "affected", "versionType": "custom", "lessThan": "18.1*", "changes": [ { "at": "18.1R3-S10", "status": "unaffected" } ] }, { "version": "18.2R2-S6, 18.2R3-S2", "status": "affected", "versionType": "custom", "lessThan": "18.2*", "changes": [ { "at": "18.2R2-S7, 18.2R3-S5", "status": "unaffected" } ] }, { "version": "18.2X75-D12, 18.2X75-D32, 18.2X75-D33, 18.2X75-D51, 18.2X75-D60, 18.2X75-D411, 18.2X75-D420", "status": "affected", "versionType": "custom", "lessThan": "18.2X75*", "changes": [ { "at": "18.2X75-D32, 18.2X75-D33, 18.2X75-D420, 18.2X75-D52, 18.2X75-D60, 18.2X75-D65, 18.2X75-D70", "status": "unaffected" } ] }, { "version": "18.3R1-S6, 18.3R2-S3, 18.3R3", "status": "affected", "versionType": "custom", "lessThan": "18.3*", "changes": [ { "at": "18.3R2-S4, 18.3R3-S2", "status": "unaffected" } ] }, { "version": "18.4R1-S5, 18.4R2-S4, 18.4R3", "status": "affected", "versionType": "custom", "lessThan": "18.4*", "changes": [ { "at": "18.4R1-S7, 18.4R3-S3", "status": "unaffected" } ] }, { "version": "19.1R1-S3, 19.1R2", "status": "affected", "versionType": "custom", "lessThan": "19.1*", "changes": [ { "at": "19.1R1-S5, 19.1R2-S2, 19.1R3-S2", "status": "unaffected" } ] }, { "version": "19.2R1-S2, 19.2R2", "status": "affected", "versionType": "custom", "lessThan": "19.2*", "changes": [ { "at": "19.2R1-S5, 19.2R2, 19.2R3", "status": "unaffected" } ] }, { "version": "19.3", "status": "affected", "versionType": "custom", "lessThan": "19.3R2-S3, 19.3R3" }, { "version": "19.4", "status": "affected", "versionType": "custom", "lessThan": "19.4R1-S2, 19.4R2, 19.4R3" }, { "version": "20.1", "status": "affected", "versionType": "custom", "lessThan": "20.1R1-S1, 20.1R2" } ] } ] } } }