{"containers":{"cna":{"affected":[{"product":"Kubernetes","vendor":"Kubernetes","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","value":"Rob Scott"}],"datePublic":"2021-07-14T00:00:00.000Z","descriptions":[{"lang":"en","value":"A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-441","description":"CWE-441 Unintended Proxy or Intermediary","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"a6081bf6-c852-4425-ad4f-a67919267565","shortName":"kubernetes","dateUpdated":"2026-06-01T21:45:55.645Z"},"references":[{"tags":["x_refsource_MISC"],"url":"https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/"},{"tags":["x_refsource_MISC"],"url":"https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE"},{"tags":["x_refsource_MISC"],"url":"https://github.com/kubernetes/kubernetes/issues/103675"},{"tags":["x_refsource_CONFIRM"],"url":"https://security.netapp.com/advisory/ntap-20211014-0001/"}],"source":{"defect":["https://github.com/kubernetes/kubernetes/issues/103675"],"discovery":"EXTERNAL"},"title":"Holes in EndpointSlice Validation Enable Host Network Hijack","x_generator":{"engine":"Vulnogram 0.0.9"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T20:11:27.960Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/kubernetes/kubernetes/issues/103675"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://security.netapp.com/advisory/ntap-20211014-0001/"}]}]},"cveMetadata":{"assignerOrgId":"a6081bf6-c852-4425-ad4f-a67919267565","assignerShortName":"kubernetes","cveId":"CVE-2021-25740","datePublished":"2021-09-20T17:05:18.065Z","dateReserved":"2021-01-21T00:00:00.000Z","dateUpdated":"2026-06-01T21:45:55.645Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"}