{"id":"CVE-2002-0509","aliases":["EUVD-2002-0505","GHSA-3fmr-rjpp-p943"],"status":"published","title":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to...","description":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a single malformed TCP packet to port 1521.","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":"2026-11-08","score":0.02666,"percentile":0.85831,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2002-06-11T04:00:00Z","modified":"2026-06-16T21:57:34Z","products":[{"vendor":"oracle","product":"oracle9i"}],"references":[{"url":"http://www.securityfocus.com/bid/4391","tags":["vdb-entry","x_refsource_BID","x_transferred","Vendor Advisory"]},{"url":"http://www.iss.net/security_center/static/8657.php","tags":["vdb-entry","x_refsource_XF","x_transferred","Vendor Advisory"]},{"url":"http://online.securityfocus.com/archive/1/264697","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0509"},{"url":"https://github.com/advisories/GHSA-3fmr-rjpp-p943"}],"sources":{"cve":[{"id":"CVE-2002-0509","description":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a single malformed TCP packet to port 1521.","status":"published","published":"2002-06-11T04:00:00Z","modified":"2024-08-08T02:49:28.515Z","updated_at":"2026-11-02T14:33:55.303902Z"}],"euvd":[{"id":"EUVD-2002-0505","description":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a single malformed TCP packet to port 1521.","status":"published","published":"2002-06-11T04:00:00Z","modified":"2024-08-08T02:49:28Z","updated_at":"2026-11-03T01:15:00.542292Z"}],"ghsa":[{"id":"GHSA-3fmr-rjpp-p943","title":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to...","description":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a single malformed TCP packet to port 1521.","status":"published","published":"2022-04-30T18:19:22Z","modified":"2023-01-30T05:05:30Z","updated_at":"2026-11-02T14:47:17.774737Z"}],"nvd":[{"id":"CVE-2002-0509","description":"Transparent Network Substrate (TNS) Listener in Oracle 9i 9.0.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a single malformed TCP packet to port 1521.","status":"published","published":"2002-08-12T04:00:00Z","modified":"2026-06-16T21:57:34.887Z","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":"2026-11-02T14:00:42.220505Z"}]}}