{"cve":"CVE-2004-1435","nvd":{"published":"2004-12-31T05:00:00.000","modified":"2026-06-16T22:07:41.893","status":"Modified","description":"Multiple versions of Cisco ONS 15327, ONS 15454, and ONS 15454 SDH, including 4.6(0) and 4.6(1), 4.5(x), 4.1(0) to 4.1(3), 4.0(0) to 4.0(2), and earlier versions, allows remote attackers to cause a denial of service (control card reset) via a large number of TCP connections with an invalid response instead of the final ACK (TCP-ACK).","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://secunia.com/advisories/12117","http://www.cisco.com/warp/public/707/cisco-sa-20040721-ons.shtml","http://www.kb.cert.org/vuls/id/277048","http://www.securityfocus.com/bid/10768","https://exchange.xforce.ibmcloud.com/vulnerabilities/16763"],"products":["cisco:optical_networking_systems_software"],"source":"nvd","synced_at":"2026-10-19T19:37:11.487553034+00:00"},"epss":{"cve":"CVE-2004-1435","score":0.03165,"percentile":0.88003,"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."]}