{"id":"CVE-2002-0381","aliases":["EUVD-2002-0378","GHSA-wh5h-x845-rhh4"],"status":"published","title":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block...","description":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01978,"percentile":0.80648,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2002-06-25T04:00:00Z","modified":"2026-06-16T21:57:19Z","products":[{"vendor":"freebsd","product":"freebsd"},{"vendor":"netbsd","product":"netbsd"},{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"ftp://patches.sgi.com/support/free/security/advisories/20030604-01-I","tags":["vendor-advisory","x_refsource_SGI","x_transferred"]},{"url":"http://online.securityfocus.com/archive/1/262733","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/4309","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/netinet/tcp_input.c.diff?r1=1.136\u0026r2=1.137","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.iss.net/security_center/static/8485.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/tcp_input.c.diff?r1=1.109\u0026r2=1.110","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.FreeBSD.org/cgi/query-pr.cgi?pr=35022","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.osvdb.org/5308","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0381"},{"url":"https://github.com/advisories/GHSA-wh5h-x845-rhh4"}],"sources":{"cve":[{"id":"CVE-2002-0381","description":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.","status":"published","published":"2003-04-02T05:00:00Z","modified":"2024-08-08T02:49:28.297Z","updated_at":"2026-11-02T14:33:55.303902Z"}],"euvd":[{"id":"EUVD-2002-0378","description":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.","status":"published","published":"2003-04-02T05:00:00Z","modified":"2024-08-08T02:49:28Z","updated_at":"2026-11-03T01:15:01.057971Z"}],"ghsa":[{"id":"GHSA-wh5h-x845-rhh4","title":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block...","description":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.","status":"published","published":"2022-05-03T03:07:52Z","modified":"2023-02-01T05:00:58Z","updated_at":"2026-11-02T14:49:38.236988Z"}],"nvd":[{"id":"CVE-2002-0381","description":"The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.","status":"published","published":"2002-06-25T04:00:00Z","modified":"2026-06-16T21:57:19.717Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:42.220505Z"}]}}