{"id":"CVE-2021-21565","aliases":["EUVD-2021-8837","GHSA-xxr9-34qv-3673"],"status":"published","title":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability....","description":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00946,"percentile":0.61399,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-834"],"published":"2021-08-02T23:45:19Z","modified":"2026-06-17T03:35:47Z","products":[{"vendor":"dell","product":"powerscale onefs"},{"vendor":"dell","product":"powerscale_onefs"}],"references":[{"url":"https://www.dell.com/support/kbdoc/000188148","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21565"},{"url":"https://github.com/advisories/GHSA-xxr9-34qv-3673"}],"sources":{"cve":[{"id":"CVE-2021-21565","description":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.","status":"published","published":"2021-08-02T23:45:19.451Z","modified":"2024-09-16T20:59:12.263Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-8837","description":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.","status":"published","published":"2021-08-02T23:45:19Z","modified":"2024-09-16T20:59:12Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:09.104839Z"}],"ghsa":[{"id":"GHSA-xxr9-34qv-3673","title":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability....","description":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.","status":"published","published":"2022-05-24T19:09:53Z","modified":"2023-01-30T05:02:00Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400","CWE-834"],"updated_at":"2026-11-02T14:46:32.185763Z"}],"nvd":[{"id":"CVE-2021-21565","description":"Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.","status":"published","published":"2021-08-03T00:15:08.457Z","modified":"2026-06-17T03:35:47.327Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-834"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}