{"id":"CVE-2001-0402","aliases":["EUVD-2001-0399","GHSA-vp6g-4h84-xm52"],"status":"published","title":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which...","description":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.","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":0.02445,"percentile":0.84444,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2001-06-18T04:00:00Z","modified":"2026-06-16T21:54:14Z","exploits":[{"source":"exploitdb","id":"EDB-20730","title":"IPFilter 3.x - Fragment Rule Bypass","type":"remote","platform":"unix","date":"2001-04-09","verified":true,"url":"https://www.exploit-db.com/exploits/20730"}],"products":[{"vendor":"darren_reed","product":"ipfilter"},{"vendor":"freebsd","product":"freebsd"},{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"http://archives.neohapsis.com/archives/freebsd/2001-04/0338.html","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6331","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=98679734015538\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0402"},{"url":"https://github.com/advisories/GHSA-vp6g-4h84-xm52"}],"sources":{"cve":[{"id":"CVE-2001-0402","description":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.","status":"published","published":"2001-09-18T04:00:00Z","modified":"2024-08-08T04:21:38.217Z","updated_at":"2026-11-02T14:34:43.358691Z"}],"euvd":[{"id":"EUVD-2001-0399","description":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.","status":"published","published":"2001-09-18T04:00:00Z","modified":"2024-08-08T04:21:38Z","updated_at":"2026-11-03T01:14:51.569576Z"}],"ghsa":[{"id":"GHSA-vp6g-4h84-xm52","title":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which...","description":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.","status":"published","published":"2022-04-30T18:16:00Z","modified":"2023-01-30T05:04:56Z","updated_at":"2026-11-02T14:47:09.636463Z"}],"nvd":[{"id":"CVE-2001-0402","description":"IPFilter 3.4.16 and earlier does not include sufficient session information in its cache, which allows remote attackers to bypass access restrictions by sending fragmented packets to a restricted port after sending unfragmented packets to an unrestricted port.","status":"published","published":"2001-06-18T04:00:00Z","modified":"2026-06-16T21:54:14.413Z","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":"2026-11-02T14:00:40.041412Z"}]}}