{"cve":"CVE-2009-1789","nvd":{"published":"2009-05-26T16:30:02.967","modified":"2026-06-16T23:08:03.840","status":"Modified","description":"mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted PRIVMSG that causes an empty string to trigger a negative string length copy.  NOTE: this issue exists because of an incorrect fix for CVE-2007-2807.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0129.html","http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=528778","http://cvs.eggheads.org/viewvc/viewvc.cgi/eggdrop1.6/doc/Changes1.6?revision=1.20&view=markup","http://osvdb.org/54460","http://secunia.com/advisories/35104"],"products":["eggheads:eggdrop","eggheads:eggdrop_irc_bot","philip_moore:windrop"],"source":"nvd","synced_at":"2026-10-19T19:54:07.895733559+00:00"},"epss":{"cve":"CVE-2009-1789","score":0.08488,"percentile":0.95031,"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."]}