{"id":"CVE-2018-20353","details":"An invalid read of 8 bytes due to a use-after-free vulnerability during a \"NULL test\" in the mg_http_get_proto_data function in mongoose.c in Cesanta Mongoose Embedded Web Server Library 6.13 and earlier allows a denial of service (application crash) or remote code execution.","modified":"2026-07-08T16:40:20.186944Z","published":"2019-06-10T17:29:02.047Z","references":[{"type":"EVIDENCE","url":"https://github.com/insi2304/mongoose-6.13-fuzz/blob/master/Simplest_Web_Server_Use_After_Free-read-mg_http_get_proto_data5932.png"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cesanta/mongoose","events":[{"introduced":"0"},{"last_affected":"95afa323c0e7740151f661629616daebe2915b61"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"6.13"}],"cpe":"cpe:2.3:a:cesanta:mongoose:*:*:*:*:*:*:*:*","source":"CPE_RANGE"}}],"versions":["6.13","6.12","6.11","6.10","6.9","6.7","6.6","6.5","6.4","6.3","6.2","6.1","6.0","5.6","5.5_20140120","5.5","5.4","5.3","5.2","5.1","5.0","4.1","4.0","3.8","3.7","3.6","3.5","3.4","3.3","3.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20353.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}