{"id":"CVE-2000-0804","aliases":["EUVD-2000-0798","GHSA-p3r3-w3mg-3rp5"],"status":"published","title":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality...","description":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality check via fragmented TCP connection requests or reopening closed TCP connection requests, aka \"One-way Connection Enforcement Bypass.\"","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":"2026-11-07","score":0.01667,"percentile":0.76891,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2000-11-14T05:00:00Z","modified":"2026-06-16T21:52:30Z","products":[{"vendor":"checkpoint","product":"firewall-1"}],"references":[{"url":"http://www.osvdb.org/4419","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.checkpoint.com/techsupport/alerts/list_vun.html#One-way_Connection","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/5468","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2000-0804"},{"url":"https://github.com/advisories/GHSA-p3r3-w3mg-3rp5"}],"sources":{"cve":[{"id":"CVE-2000-0804","description":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality check via fragmented TCP connection requests or reopening closed TCP connection requests, aka \"One-way Connection Enforcement Bypass.\"","status":"published","published":"2001-01-22T05:00:00Z","modified":"2024-08-08T05:28:41.561Z","updated_at":"2026-11-02T14:33:41.23606Z"}],"euvd":[{"id":"EUVD-2000-0798","description":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality check via fragmented TCP connection requests or reopening closed TCP connection requests, aka \"One-way Connection Enforcement Bypass.\"","status":"published","published":"2001-01-22T05:00:00Z","modified":"2024-08-08T05:28:41Z","updated_at":"2026-11-03T00:56:23.73011Z"}],"ghsa":[{"id":"GHSA-p3r3-w3mg-3rp5","title":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality...","description":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality check via fragmented TCP connection requests or reopening closed TCP connection requests, aka \"One-way Connection Enforcement Bypass.\"","status":"published","published":"2022-04-30T18:14:20Z","modified":"2023-01-30T05:04:54Z","updated_at":"2026-11-02T14:47:09.187677Z"}],"nvd":[{"id":"CVE-2000-0804","description":"Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass the directionality check via fragmented TCP connection requests or reopening closed TCP connection requests, aka \"One-way Connection Enforcement Bypass.\"","status":"published","published":"2000-11-14T05:00:00Z","modified":"2026-06-16T21:52:30.933Z","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":"2026-11-02T13:59:02.365657Z"}]}}