{"id":"CVE-2017-2921","aliases":["DEBIAN-CVE-2017-2921","EUVD-2017-12062","GHSA-5xj4-7qf8-2g46"],"status":"published","title":"An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of...","description":"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.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.02417,"percentile":0.84249,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190"],"published":"2017-11-07T16:00:00Z","modified":"2026-10-24T10:30:21Z","fixes":[{"ecosystem":"Debian:12","package":"smplayer","fixed_in":["18.5.0~ds1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"smplayer","fixed_in":["18.5.0~ds1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"smplayer","fixed_in":["18.5.0~ds1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5.0~ds1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5.0~ds1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"smplayer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.5.0~ds1-1"}]}]}],"products":[{"vendor":"automattic","product":"mongoose"},{"vendor":"cesanta","product":"mongoose"}],"references":[{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428","tags":["x_refsource_MISC","x_transferred","Exploit","Technical Description","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-2921"},{"url":"https://github.com/advisories/GHSA-5xj4-7qf8-2g46"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-2921","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2017-2921","description":"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.","status":"published","published":"2017-11-07T16:00:00Z","modified":"2024-09-16T22:56:25.193Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:15.543086Z"}],"euvd":[{"id":"EUVD-2017-12062","description":"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.","status":"published","published":"2017-11-07T16:00:00Z","modified":"2024-09-16T22:56:25Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:54:58.273879Z"}],"ghsa":[{"id":"GHSA-5xj4-7qf8-2g46","title":"An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of...","description":"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.","status":"published","published":"2022-05-13T01:01:12Z","modified":"2023-01-27T05:02:15Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:42:02.546908Z"}],"nvd":[{"id":"CVE-2017-2921","description":"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.","status":"published","published":"2017-11-07T16:29:01.217Z","modified":"2026-06-17T01:17:08.423Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:04:08.01771Z"}],"osv":[{"id":"CVE-2017-2921","description":"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.","status":"published","published":"2017-11-07T16:29:01.217Z","modified":"2026-10-24T10:30:21.597305215Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:05.486486Z"},{"id":"DEBIAN-CVE-2017-2921","description":"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.","status":"published","published":"2017-11-07T16:29:01.217Z","modified":"2026-09-01T20:03:47.889958429Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:29.100767Z"}]}}