{"affected":[{"affectedData":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"source":"cve@mitre.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*","matchCriteriaId":"64073A0E-8E84-4023-B074-B67F41D2C97B","versionEndExcluding":"4.19.4m","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*","matchCriteriaId":"7B1D2D75-253A-41D8-85A1-5FC10D2C8D1D","versionEndExcluding":"4.20.2f","versionStartIncluding":"4.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"The Mlag agent in Arista EOS 4.19 before 4.19.4M and 4.20 before 4.20.2F allows remote attackers to cause a denial of service (agent restart) via crafted UDP packets."},{"lang":"es","value":"El agente Mlag en Arista EOS en versiones 4.19 anteriores a 4.19.4M y versiones 4.20 anteriores a 4.20.2F permite que atacantes remotos provoquen una denegación de servicio (reinicio del agente) mediante paquetes UDP manipulados."}],"id":"CVE-2018-5255","lastModified":"2026-06-17T01:59:55.423","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"PARTIAL","baseScore":4.0,"confidentialityImpact":"NONE","integrityImpact":"NONE","vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P","version":"2.0"},"exploitabilityScore":8.0,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV30":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"exploitabilityScore":2.8,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2018-03-05T18:29:00.423","references":[{"source":"cve@mitre.org","tags":["Patch","Vendor Advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/4347-security-advisory-32"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/4347-security-advisory-32"}],"sourceIdentifier":"cve@mitre.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"NVD-CWE-noinfo"}],"source":"nvd@nist.gov","type":"Primary"}]}