{"id":"CVE-2000-0916","aliases":["EUVD-2000-0903","GHSA-4h9w-7r8x-ppq7"],"status":"published","title":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number...","description":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05547,"percentile":0.92892,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2000-11-29T05:00:00Z","modified":"2026-09-23T10:10:00Z","exploits":[{"source":"exploitdb","id":"EDB-19522","title":"Linux Kernel 2.2 - Predictable TCP Initial Sequence Number","type":"remote","platform":"linux","date":"1999-09-27","verified":true,"url":"https://www.exploit-db.com/exploits/19522"}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:52.tcp-iss.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/1766","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2000-0916"},{"url":"https://github.com/advisories/GHSA-4h9w-7r8x-ppq7"}],"sources":{"cve":[{"id":"CVE-2000-0916","description":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.","status":"published","published":"2000-11-29T05:00:00Z","modified":"2024-08-08T05:37:31.476Z","updated_at":"2026-11-02T14:33:40.909668Z"}],"euvd":[{"id":"EUVD-2000-0903","description":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.","status":"published","published":"2000-11-29T05:00:00Z","modified":"2024-08-08T05:37:31Z","updated_at":"2026-11-03T00:56:23.327984Z"}],"ghsa":[{"id":"GHSA-4h9w-7r8x-ppq7","title":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number...","description":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.","status":"published","published":"2022-05-03T03:06:46Z","modified":"2023-02-01T05:00:55Z","updated_at":"2026-11-02T14:49:37.776792Z"}],"nvd":[{"id":"CVE-2000-0916","description":"FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.","status":"published","published":"2000-12-19T05:00:00Z","modified":"2026-09-23T10:10:00.673Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:39.593487Z"}]}}