{"id":"CVE-1999-0821","aliases":["EUVD-1999-0802","GHSA-27fc-7vgc-cg5g"],"status":"published","title":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the ...","description":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the -emulator argument.","severity":{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00769,"percentile":0.55917,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"1999-11-08T05:00:00Z","modified":"2026-06-16T21:49:07Z","exploits":[{"source":"exploitdb","id":"EDB-19651","title":"FreeBSD 3.3 - Seyon SetGID Dialer","type":"local","platform":"freebsd","date":"1999-12-01","verified":true,"url":"https://www.exploit-db.com/exploits/19651"},{"source":"exploitdb","id":"EDB-252","title":"Seyon 2.1 rev. 4b i586-Linux (RedHat 4.0/5.1) - Local Overflow","type":"local","platform":"linux","date":"2001-01-15","verified":true,"url":"https://www.exploit-db.com/exploits/252"}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://www.securityfocus.com/bid/838","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-0821"},{"url":"https://github.com/advisories/GHSA-27fc-7vgc-cg5g"}],"sources":{"cve":[{"id":"CVE-1999-0821","description":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the -emulator argument.","status":"published","published":"2000-02-04T05:00:00Z","modified":"2024-08-01T16:48:38.326Z","updated_at":"2026-11-02T14:33:53.60785Z"}],"euvd":[{"id":"EUVD-1999-0802","description":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the -emulator argument.","status":"published","published":"2000-02-04T05:00:00Z","modified":"2024-08-01T16:48:38Z","updated_at":"2026-11-03T03:50:45.600801Z"}],"ghsa":[{"id":"GHSA-27fc-7vgc-cg5g","title":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the ...","description":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the -emulator argument.","status":"published","published":"2022-04-30T18:11:16Z","modified":"2023-01-30T05:04:06Z","updated_at":"2026-11-02T14:46:58.413117Z"}],"nvd":[{"id":"CVE-1999-0821","description":"FreeBSD seyon allows local users to gain privileges by providing a malicious program in the -emulator argument.","status":"published","published":"1999-11-08T05:00:00Z","modified":"2026-06-16T21:49:07.71Z","cvss":[{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T13:58:40.923898Z"}]}}