{"cve":"CVE-2011-1966","nvd":{"published":"2011-08-10T21:55:01.703","modified":"2026-06-16T23:30:30.740","status":"Modified","description":"The DNS server in Microsoft Windows Server 2008 SP2, R2, and R2 SP1 does not properly handle NAPTR queries that trigger recursive processing, which allows remote attackers to execute arbitrary code via a crafted query, aka \"DNS NAPTR Query Vulnerability.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://www.us-cert.gov/cas/techalerts/TA11-221A.html","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12764","http://www.us-cert.gov/cas/techalerts/TA11-221A.html","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058"],"products":["microsoft:windows_server_2008"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-1966","score":0.55203,"percentile":0.99029,"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."]}