{"cve":"CVE-2003-0567","nvd":{"published":"2003-08-18T04:00:00.000","modified":"2026-06-16T22:02:26.847","status":"Modified","description":"Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/006743.html","http://www.cert.org/advisories/CA-2003-15.html","http://www.cert.org/advisories/CA-2003-17.html","http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml","http://www.kb.cert.org/vuls/id/411332"],"products":["cisco:ios","cisco:ons_15454_optical_transport_platform","cisco:optical_networking_systems_software"],"source":"nvd","synced_at":"2026-10-19T19:35:54.859949650+00:00"},"epss":{"cve":"CVE-2003-0567","score":0.16576,"percentile":0.97011,"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."]}