{"id":"CVE-2017-2921","details":"An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet can cause an integer overflow, leading to a heap buffer overflow and resulting in denial of service and potential remote code execution. An attacker needs to send a specially crafted websocket packet over network to trigger this vulnerability.","modified":"2026-08-07T14:53:22.516382Z","published":"2017-11-07T16:29:01.217Z","references":[{"type":"EVIDENCE","url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428"}],"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-2017-2921.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:H/I:H/A:H"}]}