{"schemaVersion":3,"id":"CVE-2004-0307","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows remote attackers to cause a denial of service (reset) by not sending the ACK portion of the TCP three-way handshake and sending an invalid response instead.","dates":{"published":"2004-09-01T04:00:00.000Z","modified":"2024-08-08T00:17:13.697Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01634,"percentile":0.75933,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01634},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01634,"percentile":0.75933}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01634,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01634,"percentile":0.75933}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"cisco","product":"optical_networking_systems_software","name":"optical networking systems software","label":"optical_networking_systems_software","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"1.0","noFixRecorded":false,"fixedIn":null},{"text":"4.0\\(1\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.0\\(2\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.0\\(0\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.1\\(0\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.1\\(1\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.1\\(2\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.1\\(3\\)","noFixRecorded":false,"fixedIn":null},{"text":"4.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.0 | 4.0\\(1\\) | 4.0\\(2\\) | 4.0\\(0\\) | 4.1\\(0\\) | 4.1\\(1\\) | 4.1\\(2\\) | 4.1\\(3\\) | 4.5","eol":null,"hubHref":"/vendor/cisco/optical_networking_systems_software"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml","label":"www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml","hostname":"www.cisco.com","tags":["Vendor Advisory","X Refsource CISCO","Patch"]},{"url":"http://www.securityfocus.com/bid/9699","label":"www.securityfocus.com/bid/9699","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Patch","Vendor Advisory"]},{"url":"http://www.osvdb.org/4009","label":"www.osvdb.org/4009","hostname":"www.osvdb.org","tags":["VDB Entry","X Refsource OSVDB"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/15265","label":"exchange.xforce.ibmcloud.com/vulnerabilities/15265","hostname":"exchange.xforce.ibmcloud.com","tags":["VDB Entry","X Refsource XF"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2004-09-01T04:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-08T00:17:13.697Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":20,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:48:48.965Z","stale":false,"partial":false}}