{"api_version":"1","generated_at":"2026-11-11T06:05:13+00:00","cve":"CVE-2026-121293","urls":{"html":"https://cve.report/CVE-2026-121293","api":"https://cve.report/api/cve/CVE-2026-121293.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-121293","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-121293"},"summary":{"title":"Security Advisory 0210","description":"On affected EOS-based platforms, an attacker who controls a Border Gateway Protocol (BGP) peer can send a crafted BGP message over an established session with the Dynamic Path Selection (DPS) address family negotiated. 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Up/Down State   PfxRcd PfxAcc PfxAdv\n  12.0.0.3 4 300               44        43    0    0 00:14:55 Estab   1      1      1\nevpnsfe1#</pre>"}],"value":"evpnsfe1#show bgp path-selection summary\nBGP summary information for VRF default\nRouter identifier 0.0.0.1, local AS number 300\nNeighbor Status Codes: m - Under maintenance\n  Neighbor V AS           MsgRcvd   MsgSent  InQ OutQ  Up/Down State   PfxRcd PfxAcc PfxAdv\n  12.0.0.3 4 300               44        43    0    0 00:14:55 Estab   1      1      1\nevpnsfe1#"}],"descriptions":[{"lang":"en","value":"On affected EOS-based platforms, an attacker who controls a Border Gateway Protocol (BGP) peer can send a crafted BGP message over an established session with the Dynamic Path Selection (DPS) address family negotiated. This can cause the BGP process to terminate unexpectedly, resetting all BGP sessions and disrupting routing services until the process restarts."}],"impacts":[{"capecId":"CAPEC-129","descriptions":[{"lang":"en","value":"CAPEC-129 Pointer Manipulation"}]}],"metrics":[{"cvssV3_1":{"baseScore":4.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"cvssV4_0":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-10T20:09:58.650Z","orgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","shortName":"Arista"},"references":[{"tags":["vendor-advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/25032-security-advisory-0210"}],"source":{"advisory":"Security Advisory 0210","defects":["1961865","1961866"],"discovery":"INTERNAL"},"title":"Security Advisory 0210"}},"cveMetadata":{"assignerOrgId":"c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7","assignerShortName":"Arista","cveId":"CVE-2026-121293","datePublished":"2026-11-10T20:09:58.650Z","dateReserved":"2026-11-03T11:21:01.892Z","dateUpdated":"2026-11-10T20:09:58.650Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-10 20:18:55","lastModifiedDate":"2026-11-10 20:18:55","problem_types":["CWE-476","CWE-476 CWE-476 NULL Pointer Dereference"],"metrics":{"cvssMetricV40":[{"source":"psirt@arista.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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:X/R:X/V:X/RE:X/U:X","baseScore":6.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"HIGH","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":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"psirt@arista.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","baseScore":4.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":0.7,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"121293","Ordinal":"1","Title":"Security Advisory 0210","CVE":"CVE-2026-121293","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"121293","Ordinal":"1","NoteData":"On affected EOS-based platforms, an attacker who controls a Border Gateway Protocol (BGP) peer can send a crafted BGP message over an established session with the Dynamic Path Selection (DPS) address family negotiated. 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