{"cve":"CVE-2009-4008","nvd":{"published":"2011-06-02T20:55:01.763","modified":"2026-06-16T23:12:49.017","status":"Modified","description":"Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog","http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz","http://www.debian.org/security/2011/dsa-2243","http://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog","http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz"],"products":["nlnetlabs:unbound"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2009-4008","score":0.02701,"percentile":0.85936,"date":"2026-11-01"},"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."]}