{"id":"CVE-2021-45856","aliases":["EUVD-2021-32572","GHSA-5gp4-fwp2-wg66"],"status":"published","title":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes...","description":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes the telnet service to crash","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01995,"percentile":0.80847,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-01-09T18:55:14Z","modified":"2026-06-17T04:14:10Z","products":[{"vendor":"accu-time","product":"maximus_firmware"}],"references":[{"url":"https://packetstormsecurity.com/files/165392/Accu-Time-Systems-MAXIMUS-1.0-Buffer-Overflow-Denial-Of-Service.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45856"},{"url":"https://github.com/advisories/GHSA-5gp4-fwp2-wg66"}],"sources":{"cve":[{"id":"CVE-2021-45856","description":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes the telnet service to crash","status":"published","published":"2022-01-09T18:55:14Z","modified":"2024-08-04T04:54:30.949Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32572","description":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes the telnet service to crash","status":"published","published":"2022-01-09T18:55:14Z","modified":"2024-08-04T04:54:30Z","updated_at":"2026-11-03T03:08:25.77408Z"}],"ghsa":[{"id":"GHSA-5gp4-fwp2-wg66","title":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes...","description":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes the telnet service to crash","status":"published","published":"2022-01-11T00:01:11Z","modified":"2023-02-03T05:04:23Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:53:32.269639Z"}],"nvd":[{"id":"CVE-2021-45856","description":"Accu-Time Systems MAXIMUS 1.0 telnet service suffers from a remote buffer overflow which causes the telnet service to crash","status":"published","published":"2022-01-10T14:11:06.48Z","modified":"2026-06-17T04:14:10.1Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:03.418194Z"}]}}