{"id":"CVE-2020-25756","details":"A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated \"this will not happen in practice.","modified":"2026-08-07T15:12:08.899613Z","published":"2020-09-18T05:15:13.197Z","references":[{"type":"FIX","url":"https://github.com/cesanta/mongoose/issues/1135"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cesanta/mongoose","events":[{"introduced":"80d74e9e341d541f71c0fa587d22cec89be32dd5"},{"last_affected":"80d74e9e341d541f71c0fa587d22cec89be32dd5"}],"database_specific":{"extracted_events":[{"introduced":"6.18"},{"last_affected":"6.18"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:cesanta:mongoose:6.18:*:*:*:*:*:*:*"}}],"versions":["6.18"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25756.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"}]}