{"id":"CVE-2020-7881","aliases":["EUVD-2020-28813","GHSA-22qh-5xm8-3xfw"],"status":"published","title":"AfreecaTV streamer service stack-based buffer overflow","description":"The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by \"FanTicket\" field. It is because of stored data without validation of length.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0144,"percentile":0.73523,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190","CWE-787"],"published":"2021-11-26T16:29:17Z","modified":"2026-06-17T03:25:35Z","products":[{"vendor":"afreecatv","product":"afreecatv"},{"vendor":"afreecatv","product":"afreecatvstreamer.exe"}],"references":[{"url":"https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7881"},{"url":"https://github.com/advisories/GHSA-22qh-5xm8-3xfw"}],"sources":{"cve":[{"id":"CVE-2020-7881","title":"AfreecaTV streamer service stack-based buffer overflow","description":"The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by \"FanTicket\" field. It is because of stored data without validation of length.","status":"published","published":"2021-11-26T16:29:17Z","modified":"2024-08-04T09:41:01.981Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:35:58.787905Z"}],"euvd":[{"id":"EUVD-2020-28813","description":"The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by \"FanTicket\" field. It is because of stored data without validation of length.","status":"published","published":"2021-11-26T16:29:17Z","modified":"2024-08-04T09:41:01Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:07:59.058668Z"}],"ghsa":[{"id":"GHSA-22qh-5xm8-3xfw","title":"The vulnerability function is enabled when the streamer service related to the AfreecaTV...","description":"The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by \"FanTicket\" field. It is because of stored data without validation of length.","status":"published","published":"2021-11-27T00:00:19Z","modified":"2023-01-27T05:01:14Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190","CWE-787"],"updated_at":"2026-11-02T14:41:50.629165Z"}],"nvd":[{"id":"CVE-2020-7881","description":"The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by \"FanTicket\" field. It is because of stored data without validation of length.","status":"published","published":"2021-11-26T17:15:07.56Z","modified":"2026-06-17T03:25:35.943Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190","CWE-787"],"updated_at":"2026-11-02T14:06:46.101987Z"}]}}