{"cve":"CVE-2004-0220","nvd":{"published":"2004-05-04T04:00:00.000","modified":"2026-06-16T22:05:11.877","status":"Modified","description":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://marc.info/?l=bugtraq&m=108008530028019&w=2","http://www.kb.cert.org/vuls/id/223273","http://www.openbsd.org/errata.html","http://www.rapid7.com/advisories/R7-0018.html","http://www.securityfocus.com/bid/9907"],"products":["openbsd:openbsd"],"source":"nvd","synced_at":"2026-10-19T19:37:11.487553034+00:00"},"epss":{"cve":"CVE-2004-0220","score":0.04604,"percentile":0.9167,"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."]}