{"cve":"CVE-2006-4252","nvd":{"published":"2006-11-14T20:07:00.000","modified":"2026-06-16T22:28:43.157","status":"Modified","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://doc.powerdns.com/powerdns-advisory-2006-02.html","http://lists.suse.com/archive/suse-security-announce/2006-Nov/0007.html","http://secunia.com/advisories/22824","http://secunia.com/advisories/22976","http://www.securityfocus.com/bid/21037"],"products":["powerdns:recursor"],"source":"nvd","synced_at":"2026-10-19T19:43:14.363260067+00:00"},"epss":{"cve":"CVE-2006-4252","score":0.05967,"percentile":0.93294,"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."]}