{"cve":"CVE-2021-28235","nvd":{"published":"2023-04-04T15:15:08.507","modified":"2026-07-09T01:16:49.477","status":"Modified","description":"Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-287"],"references":["https://github.com/etcd-io/etcd","https://github.com/etcd-io/etcd/pull/15648","https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj.png","https://github.com/lucyxss/etcd-3.4.10-test/blob/master/temp4cj_2.png","https://github.com/etcd-io/etcd"],"products":["etcd:etcd"],"source":"nvd","synced_at":"2026-10-19T21:37:48.383111019+00:00"},"epss":{"cve":"CVE-2021-28235","score":0.01618,"percentile":0.76053,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-gmph-wf7j-9gcm","url":"https://osv.dev/vulnerability/GHSA-gmph-wf7j-9gcm","summary":"Etcd-io Improper Authentication vulnerability","modified":"2023-12-06T01:01:00.695165Z","packages":[{"ecosystem":"Go","name":"go.etcd.io/etcd/v3","purl":"pkg:golang/go.etcd.io/etcd/v3","ranges":["3.4.10"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}