{"cve":"CVE-2013-5469","nvd":{"published":"2013-08-30T20:55:08.737","modified":"2026-06-16T23:58:52.210","status":"Modified","description":"The TCP implementation in Cisco IOS does not properly implement the transitions from the ESTABLISHED state to the CLOSED state, which allows remote attackers to cause a denial of service (flood of ACK packets) via a crafted series of ACK and FIN packets, aka Bug ID CSCtz14399.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://osvdb.org/96764","http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5469","http://www.securityfocus.com/bid/62083","http://www.securitytracker.com/id/1028969","https://exchange.xforce.ibmcloud.com/vulnerabilities/86794"],"products":["cisco:ios"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-5469","score":0.02362,"percentile":0.83787,"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."]}