{"affected":[{"defaultStatus":"unaffected","platforms":["7280R3 Series","7500R3 Series","7800R3 Series"],"product":"EOS","source":"CNA: Arista","vendor":"Arista Networks","versions":[{"lessThanOrEqual":"4.33.10M","status":"affected","version":"4.33.0F","versionType":"custom"},{"lessThanOrEqual":"4.34.8M","status":"affected","version":"4.34.0F","versionType":"custom"},{"lessThanOrEqual":"4.35.6M","status":"affected","version":"4.35.0F","versionType":"custom"},{"lessThanOrEqual":"4.36.2F","status":"affected","version":"4.36.0F","versionType":"custom"}]}],"cveId":"CVE-2026-120981","cwes":["CWE-772"],"description":"On affected platforms running Arista EOS with VPLS-BGP enabled, an attacker who has established a BGP session with the PE router can affect the route advertisements of VPLS pseudowires, causing a churn of the established routes with other legitimate BGP peers.","epss":{"date":"2026-11-13","percentile":0.18698,"score":0.00266},"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: Arista","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":6,"severity":"medium","source":"CNA: Arista","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:L/SA:L","version":"4.0"},{"score":6,"severity":"medium","source":"NVD: psirt@arista.com","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:L/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:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":5.3,"severity":"medium","source":"NVD: psirt@arista.com","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794591132420,"publishedAt":1794341394017,"references":[{"source":"CNA: Arista","tags":["vendor-advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/25036-security-advisory-0214"},{"source":"psirt@arista.com","tags":[],"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/25036-security-advisory-0214"}],"remediation":[],"revision":"da09bc30673c5e51baeb29a19e5cca9a1ea8d7173276680e98f5875f46838fea","sources":[{"modifiedAt":1794591132420,"name":"CNA: Arista","retrievedAt":1794593314577,"url":"https://www.cve.org/CVERecord?id=CVE-2026-120981"},{"modifiedAt":1794511477847,"name":"NVD","retrievedAt":1794529282705,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120981"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794593327889,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-120981"}],"ssvc":{"assessedAt":1794591120464,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Security Advisory 0214","updatedAt":1794593327889}