{"api_version":"1","generated_at":"2026-07-23T09:02:43+00:00","cve":"CVE-2009-4016","urls":{"html":"https://cve.report/CVE-2009-4016","api":"https://cve.report/api/cve/CVE-2009-4016.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2009-4016","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-4016"},"summary":{"title":"CVE-2009-4016","description":"Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a LINKS command.","state":"PUBLISHED","assigner":"mitre","published_at":"2010-02-04 20:15:23","updated_at":"2026-04-29 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