{"id":"CVE-2020-23904","aliases":["EUVD-2020-16641","GHSA-3p3f-h63v-47c5","UBUNTU-CVE-2020-23904"],"status":"disputed","title":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service...","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states \"I cannot reproduce it\" and it \"is a demo program.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00719,"percentile":0.54206,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-11-10T21:26:13Z","modified":"2026-10-20T10:52:50Z","affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"speex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2~rc1.2-1ubuntu1","1.2~rc1.2-1ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"speex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2~rc1.2-1ubuntu1","1.2~rc1.2-1ubuntu2","1.2~rc1.2-1ubuntu2.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"speex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2~rc1.2-1ubuntu2","1.2~rc1.2-1.1ubuntu1","1.2~rc1.2-1.1ubuntu1.20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"speex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2~rc1.2-1.1ubuntu1","1.2~rc1.2-1.1ubuntu2","1.2~rc1.2-1.1ubuntu3"]}],"products":[{"vendor":"xiph","product":"speex"}],"references":[{"url":"https://github.com/xiph/speex/issues/14","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-23904"},{"url":"https://github.com/advisories/GHSA-3p3f-h63v-47c5"},{"url":"https://ubuntu.com/security/CVE-2020-23904","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-23904","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-23904","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states \"I cannot reproduce it\" and it \"is a demo program.","status":"disputed","published":"2021-11-10T21:26:13Z","modified":"2024-08-04T15:05:11.309Z","updated_at":"2026-11-02T14:35:49.209579Z"}],"euvd":[{"id":"EUVD-2020-16641","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states \"I cannot reproduce it\" and it \"is a demo program.","status":"published","published":"2021-11-10T21:26:13Z","modified":"2024-08-04T15:05:11Z","updated_at":"2026-11-03T03:07:21.209139Z"}],"ghsa":[{"id":"GHSA-3p3f-h63v-47c5","title":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service...","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file.","status":"published","published":"2022-05-24T19:20:12Z","modified":"2023-01-30T05:03:47Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:54.738868Z"}],"nvd":[{"id":"CVE-2020-23904","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states \"I cannot reproduce it\" and it \"is a demo program.","status":"disputed","published":"2021-11-10T22:15:11.663Z","modified":"2026-06-17T03:05:04.433Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:46.101987Z"}],"osv":[{"id":"CVE-2020-23904","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states \"I cannot reproduce it\" and it \"is a demo program.","status":"published","published":"2021-11-10T22:15:11.663Z","modified":"2026-10-20T10:52:50.22196845Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:15.534837Z"},{"id":"UBUNTU-CVE-2020-23904","description":"A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states \"I cannot reproduce it\" and it \"is a demo program.","status":"published","published":"2021-11-10T22:15:00Z","modified":"2026-04-22T12:35:25.854455Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:23.905183Z"}]}}