{"schemaVersion":3,"id":"CVE-2018-5254","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Arista EOS before 4.20.2F allows remote BGP peers to cause a denial of service (Rib agent restart) via a malformed path attribute in an UPDATE message.","dates":{"published":"2018-04-12T21:00:00.000Z","modified":"2024-08-05T05:33:43.633Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01232,"percentile":0.68515,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":-0.024000000000000063,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.01256},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0123,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01232,"percentile":0.68515}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01256,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0123,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01232,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01232,"percentile":0.68515}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-417","name":"Communication Channel Errors","description":"Weaknesses in this category are related to improper handling of communication channels and access paths. These weaknesses include problems in creating, managing, or removing alternate channels and alternate paths. Some of these can overlap virtual file problems and are commonly used in \"bypass\" attacks, such as those that exploit authentication errors.","type":"category","status":"Draft","abstraction":null,"likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/417.html"}],"affected":[{"vendor":"arista","product":"eos","name":"eos","label":"eos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 4.20.2f","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.20.2f","eol":null,"hubHref":"/vendor/arista/eos"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/4403-security-advisory-33","label":"www.arista.com/en/support/advisories-notices/security-advisories/4403-security-advisory-33","hostname":"www.arista.com","tags":["X Refsource CONFIRM","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-04-12T21:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T05:33:43.633Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T11:02:27.322Z","stale":false,"partial":false}}