{"id":"CVE-2021-42219","aliases":["EUVD-2022-1553","GHSA-vrcc-g6vj-mh5w"],"status":"published","title":"Denial of service in go-ethereum","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","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":"2026-11-11","score":0.01197,"percentile":0.685,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2022-03-16T23:02:06Z","modified":"2026-10-24T10:30:54Z","affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/ethereum/go-ethereum","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.10.9"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/ethereum/go-ethereum","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.10.9"}]}]}],"products":[{"vendor":"ethereum","product":"go_ethereum"}],"references":[{"url":"https://docs.google.com/document/d/1dYFSpNZPC0OV-n1mMqdc269u9yYU1XQy/edit?usp=sharing\u0026ouid=112110745137218798745\u0026rtpof=true\u0026sd=true","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42219","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vrcc-g6vj-mh5w"}],"sources":{"cve":[{"id":"CVE-2021-42219","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","status":"published","published":"2022-03-16T23:02:06Z","modified":"2024-08-04T03:30:37.539Z","updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2022-1553","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","status":"published","published":"2022-03-16T23:02:06Z","modified":"2024-08-04T03:30:37Z","updated_at":"2026-11-03T03:24:16.217613Z"}],"ghsa":[{"id":"GHSA-vrcc-g6vj-mh5w","title":"Denial of service in go-ethereum","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","status":"published","published":"2022-03-18T00:01:13Z","modified":"2023-01-27T05:00:56Z","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"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:36:15.574072Z"}],"nvd":[{"id":"CVE-2021-42219","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","status":"published","published":"2022-03-17T00:15:07.813Z","modified":"2026-06-17T04:09:29.023Z","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":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:05.581807Z"}],"osv":[{"id":"CVE-2021-42219","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","status":"published","published":"2022-03-17T00:15:07.813Z","modified":"2026-10-24T10:30:54.484952894Z","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"}],"updated_at":"2026-11-02T15:44:21.557945Z"},{"id":"GHSA-vrcc-g6vj-mh5w","title":"Denial of service in go-ethereum","description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","status":"published","published":"2022-03-18T00:01:13Z","modified":"2023-11-08T04:07:05.160401Z","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"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:57.694388Z"}]}}