{"id":"CVE-2005-0740","aliases":["EUVD-2005-0741","GHSA-xjqv-85hf-cf6h"],"status":"published","title":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of...","description":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01568,"percentile":0.75491,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2005-01-13T05:00:00Z","modified":"2026-06-16T22:11:40Z","products":[{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"http://www.openbsd.org/errata35.html","tags":["vendor-advisory","x_refsource_OPENBSD","x_transferred","Patch","Vendor Advisory"]},{"url":"http://secunia.com/advisories/13819","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://securitytracker.com/id?1012861","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/12250","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-0740"},{"url":"https://github.com/advisories/GHSA-xjqv-85hf-cf6h"}],"sources":{"cve":[{"id":"CVE-2005-0740","description":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.","status":"published","published":"2005-03-13T05:00:00Z","modified":"2024-08-07T21:21:06.751Z","updated_at":"2026-11-02T14:33:40.578358Z"}],"euvd":[{"id":"EUVD-2005-0741","description":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.","status":"published","published":"2005-03-13T05:00:00Z","modified":"2024-08-07T21:21:06Z","updated_at":"2026-11-03T01:15:36.833936Z"}],"ghsa":[{"id":"GHSA-xjqv-85hf-cf6h","title":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of...","description":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.","status":"published","published":"2022-05-01T01:51:47Z","modified":"2023-01-30T05:07:13Z","updated_at":"2026-11-02T14:47:38.865804Z"}],"nvd":[{"id":"CVE-2005-0740","description":"The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.","status":"published","published":"2005-01-13T05:00:00Z","modified":"2026-06-16T22:11:40.91Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:54.594271Z"}]}}