{"id":"CVE-2004-0307","aliases":["EUVD-2004-0307","GHSA-793j-ggmw-r33w"],"status":"published","title":"Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows...","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.","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":0.01634,"percentile":0.76422,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2004-09-01T04:00:00Z","modified":"2026-06-16T22:05:21Z","products":[{"vendor":"cisco","product":"optical_networking_systems_software"}],"references":[{"url":"http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/9699","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.osvdb.org/4009","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/15265","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0307"},{"url":"https://github.com/advisories/GHSA-793j-ggmw-r33w"}],"sources":{"cve":[{"id":"CVE-2004-0307","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.","status":"published","published":"2004-09-01T04:00:00Z","modified":"2024-08-08T00:17:13.697Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2004-0307","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.","status":"published","published":"2004-09-01T04:00:00Z","modified":"2024-08-08T00:17:13Z","updated_at":"2026-11-03T01:15:20.041361Z"}],"ghsa":[{"id":"GHSA-793j-ggmw-r33w","title":"Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows...","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.","status":"published","published":"2022-04-29T02:57:31Z","modified":"2023-01-30T05:02:41Z","updated_at":"2026-11-02T14:46:41.667597Z"}],"nvd":[{"id":"CVE-2004-0307","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.","status":"published","published":"2004-11-23T05:00:00Z","modified":"2026-06-16T22:05:21.65Z","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":"2026-11-02T14:00:51.985436Z"}]}}