{"id":"CVE-2020-17355","aliases":["EUVD-2020-9309","GHSA-jp7j-xv2r-4c7j"],"status":"published","title":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24...","description":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01209,"percentile":0.68622,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-10-21T21:59:50Z","modified":"2026-06-17T02:58:47Z","products":[{"vendor":"arista","product":"eos"}],"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17355"},{"url":"https://github.com/advisories/GHSA-jp7j-xv2r-4c7j"}],"sources":{"cve":[{"id":"CVE-2020-17355","description":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.","status":"published","published":"2020-10-21T21:59:50Z","modified":"2024-08-04T13:53:16.481Z","updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-9309","description":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.","status":"published","published":"2020-10-21T21:59:50Z","modified":"2024-08-04T13:53:16Z","updated_at":"2026-11-03T03:07:27.538796Z"}],"ghsa":[{"id":"GHSA-jp7j-xv2r-4c7j","title":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24...","description":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.","status":"published","published":"2022-05-24T17:31:57Z","modified":"2023-01-29T05:04:28Z","updated_at":"2026-11-02T14:45:33.67375Z"}],"nvd":[{"id":"CVE-2020-17355","description":"Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.","status":"published","published":"2020-10-21T22:15:11.93Z","modified":"2026-06-17T02:58:47.73Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:20.704992Z"}]}}