{"id":"CVE-2017-2893","details":"An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","modified":"2026-08-07T14:53:23.534577Z","published":"2017-11-07T16:29:00.777Z","references":[{"type":"EVIDENCE","url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0400"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cesanta/mongoose","events":[{"introduced":"acfc66cd60f5bfa7dc4d37194d72855c201e5710"},{"last_affected":"acfc66cd60f5bfa7dc4d37194d72855c201e5710"}],"database_specific":{"extracted_events":[{"introduced":"6.8"},{"last_affected":"6.8"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:cesanta:mongoose:6.8:*:*:*:*:*:*:*"}}],"versions":["6.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-2893.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}