{"id":"CVE-2020-27888","aliases":["EUVD-2020-20381","GHSA-fc89-33h9-mh65"],"status":"published","title":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi...","description":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly from a disconnected state. This may provide unintended network access.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01015,"percentile":0.637,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-459","CWE-522"],"published":"2020-10-27T19:25:31Z","modified":"2026-06-17T03:09:47Z","products":[{"vendor":"ui","product":"unifi_controller_firmware"},{"vendor":"ui","product":"unifi_meshing_access_point_firmware"}],"references":[{"url":"https://community.ui.com/questions/Possible-authentication-bypass-for-access-into-LAN/7965adb2-5d70-4410-8467-4c7bec76bc00","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27888"},{"url":"https://github.com/advisories/GHSA-fc89-33h9-mh65"}],"sources":{"cve":[{"id":"CVE-2020-27888","description":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly from a disconnected state. This may provide unintended network access.","status":"published","published":"2020-10-27T19:25:31Z","modified":"2024-08-04T16:25:43.931Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20381","description":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly from a disconnected state. This may provide unintended network access.","status":"published","published":"2020-10-27T19:25:31Z","modified":"2024-08-04T16:25:43Z","updated_at":"2026-11-03T03:07:11.320494Z"}],"ghsa":[{"id":"GHSA-fc89-33h9-mh65","title":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi...","description":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly from a disconnected state. This may provide unintended network access.","status":"published","published":"2022-05-24T17:32:38Z","modified":"2023-01-29T05:04:32Z","cwes":["CWE-522"],"updated_at":"2026-11-02T14:45:34.663559Z"}],"nvd":[{"id":"CVE-2020-27888","description":"An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly from a disconnected state. This may provide unintended network access.","status":"published","published":"2020-10-27T21:15:14.023Z","modified":"2026-06-17T03:09:47.66Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-459","CWE-522"],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}