{"id":"CVE-2021-38679","aliases":["EUVD-2021-25118","GHSA-5hf8-wqqm-3jx5"],"status":"published","title":"Improper Authentication in Kazoo Server","description":"An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00743,"percentile":0.54984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2022-02-11T13:20:11Z","modified":"2026-06-17T04:02:34Z","products":[{"vendor":"linn products limited","product":"kazoo server"},{"vendor":"qnap","product":"kazoo_server"},{"vendor":"qnap systems inc.","product":"kazoo server"}],"references":[{"url":"https://www.qnap.com/en/security-advisory/qsa-22-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38679"},{"url":"https://github.com/advisories/GHSA-5hf8-wqqm-3jx5"}],"sources":{"cve":[{"id":"CVE-2021-38679","title":"Improper Authentication in Kazoo Server","description":"An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later","status":"published","published":"2022-02-11T13:20:11.061Z","modified":"2024-09-16T17:28:42.21Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-25118","description":"An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later","status":"published","published":"2022-02-11T13:20:11Z","modified":"2024-09-16T17:28:42Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:41.41816Z"}],"ghsa":[{"id":"GHSA-5hf8-wqqm-3jx5","title":"An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo...","description":"An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later","status":"published","published":"2022-02-12T00:00:48Z","modified":"2023-02-03T05:05:52Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:53:48.81294Z"}],"nvd":[{"id":"CVE-2021-38679","description":"An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later","status":"published","published":"2022-02-11T14:15:08.017Z","modified":"2026-06-17T04:02:34.593Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:04.6896Z"}]}}