{"cve":"CVE-2004-0307","nvd":{"published":"2004-11-23T05:00:00.000","modified":"2026-06-16T22:05:21.650","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml","http://www.osvdb.org/4009","http://www.securityfocus.com/bid/9699","https://exchange.xforce.ibmcloud.com/vulnerabilities/15265","http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml"],"products":["cisco:optical_networking_systems_software"],"source":"nvd","synced_at":"2026-10-19T19:37:11.487553034+00:00"},"epss":{"cve":"CVE-2004-0307","score":0.01634,"percentile":0.76286,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}