{"id":"CVE-2025-51495","details":"An integer overflow vulnerability exists in the WebSocket component of Mongoose 7.5 thru 7.17. By sending a specially crafted WebSocket request, an attacker can cause the application to crash. If downstream vendors integrate this component improperly, the issue may lead to a buffer overflow.","modified":"2026-08-12T03:51:36.375582332Z","published":"2025-09-29T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/51xxx/CVE-2025-51495.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/51xxx/CVE-2025-51495.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-51495"},{"type":"FIX","url":"https://github.com/cesanta/mongoose/pull/3131"},{"type":"PACKAGE","url":"https://github.com/cainiao159357/CVE-2025-51495"},{"type":"PACKAGE","url":"https://github.com/cesanta/mongoose"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cesanta/mongoose","events":[{"introduced":"9d38e26b817b6b151fd925e9a8420a46c99a8375"},{"last_affected":"0a86bc0af22173b8c952c11551a067fd6f843d83"}],"database_specific":{"extracted_events":[{"introduced":"7.5"},{"last_affected":"7.17"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:cesanta:mongoose:*:*:*:*:*:*:*:*"}}],"versions":["7.17","7.16","7.15","7.14","7.13","7.12","7.11","7.8","7.7","7.6","7.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-51495.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}