{"id":"CVE-2021-21535","aliases":["EUVD-2021-8807","GHSA-4mmw-26jr-m4mm"],"status":"published","title":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function...","description":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function vulnerability. A local unauthenticated attacker may exploit this vulnerability in order to gain root level access to the system.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00204,"percentile":0.10531,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2021-04-30T17:40:18Z","modified":"2026-06-17T03:35:44Z","products":[{"vendor":"dell","product":"dell hybrid client (dhc)"},{"vendor":"dell","product":"hybrid_client"}],"references":[{"url":"https://www.dell.com/support/kbdoc/en-us/000184667/dsa-2021-071-dell-hybrid-client-security-update-for-multiple-vulnerabilities","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21535"},{"url":"https://github.com/advisories/GHSA-4mmw-26jr-m4mm"}],"sources":{"cve":[{"id":"CVE-2021-21535","description":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function vulnerability. A local unauthenticated attacker may exploit this vulnerability in order to gain root level access to the system.","status":"published","published":"2021-04-30T17:40:18.031Z","modified":"2024-09-16T23:35:32.828Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:33:00.137099Z"}],"euvd":[{"id":"EUVD-2021-8807","description":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function vulnerability. A local unauthenticated attacker may exploit this vulnerability in order to gain root level access to the system.","status":"published","published":"2021-04-30T17:40:18Z","modified":"2024-09-16T23:35:32Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:54:49.244391Z"}],"ghsa":[{"id":"GHSA-4mmw-26jr-m4mm","title":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function...","description":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function vulnerability. A local unauthenticated attacker may exploit this vulnerability in order to gain root level access to the system.","status":"published","published":"2022-05-24T17:49:20Z","modified":"2023-01-29T05:07:29Z","cwes":["CWE-306"],"updated_at":"2026-11-02T14:46:10.15423Z"}],"nvd":[{"id":"CVE-2021-21535","description":"Dell Hybrid Client versions prior to 1.5 contain a missing authentication for a critical function vulnerability. A local unauthenticated attacker may exploit this vulnerability in order to gain root level access to the system.","status":"published","published":"2021-04-30T18:15:07.43Z","modified":"2026-06-17T03:35:44.07Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}