{"id":"CVE-2020-36964","aliases":["EUVD-2020-30885","GHSA-237r-v2jq-99fc"],"status":"published","title":"YATinyWinFTP - Denial of Service","description":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00461,"percentile":0.40292,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-01-28T17:35:09Z","modified":"2026-06-17T03:16:37Z","products":[{"vendor":"ik80","product":"yatinywinftp"}],"references":[{"url":"https://www.exploit-db.com/exploits/49127","tags":["exploit"]},{"url":"https://github.com/ik80/YATinyWinFTP","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/yatinywinftp-denial-of-service","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36964"},{"url":"https://github.com/advisories/GHSA-237r-v2jq-99fc"}],"sources":{"cve":[{"id":"CVE-2020-36964","title":"YATinyWinFTP - Denial of Service","description":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.","status":"published","published":"2026-01-28T17:35:09.08Z","modified":"2026-01-29T18:12:34.208Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"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":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-30885","description":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.","status":"published","published":"2026-01-28T17:35:09Z","modified":"2026-01-29T18:12:34Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:48:45.944715Z"}],"ghsa":[{"id":"GHSA-237r-v2jq-99fc","title":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP...","description":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.","status":"published","published":"2026-01-28T18:30:48Z","modified":"2026-01-28T18:30:54Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:05:57.071513Z"}],"nvd":[{"id":"CVE-2020-36964","description":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.","status":"published","published":"2026-01-28T18:16:46.63Z","modified":"2026-06-17T03:16:37.783Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"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":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:48.591569Z"}]}}