{"id":"CVE-2021-28166","aliases":["ALPINE-CVE-2021-28166","BELL-CVE-2021-28166","DEBIAN-CVE-2021-28166","EUVD-2021-14859","GHSA-3647-h3m7-326w","UBUNTU-CVE-2021-28166","openSUSE-SU-2024:11057-1"],"status":"published","title":"In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with...","description":"In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would 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eclipse foundation","product":"eclipse mosquitto"}],"references":[{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=572608","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","Vendor 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Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.","status":"published","published":"2021-04-07T18:50:19Z","modified":"2024-08-03T21:40:12.058Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-14859","description":"In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would 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