{"cve":"CVE-2009-0093","nvd":{"published":"2009-03-11T14:19:15.233","modified":"2026-06-16T23:04:14.927","status":"Modified","description":"Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008, when dynamic updates are enabled, does not restrict registration of the \"wpad\" hostname, which allows remote authenticated users to hijack the Web Proxy Auto-Discovery (WPAD) feature, and conduct man-in-the-middle attacks by spoofing a proxy server, via a Dynamic Update request for this hostname, aka \"DNS Server Vulnerability in WPAD Registration Vulnerability,\" a related issue to CVE-2007-1692.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://blog.ncircle.com/blogs/vert/archives/2009/03/successful_exploit_renders_mic.html","http://blogs.technet.com/srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx","http://osvdb.org/52519","http://secunia.com/advisories/34217","http://support.avaya.com/elmodocs2/security/ASA-2009-083.htm"],"products":["microsoft:windows_2000","microsoft:windows_server_2003","microsoft:windows_server_2008"],"source":"nvd","synced_at":"2026-10-19T19:53:23.791937413+00:00"},"epss":{"cve":"CVE-2009-0093","score":0.1702,"percentile":0.97074,"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."]}