{"cve":"CVE-2014-0239","nvd":{"published":"2014-05-28T04:58:32.750","modified":"2026-06-17T00:02:37.413","status":"Modified","description":"The internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://secunia.com/advisories/59579","http://security.gentoo.org/glsa/glsa-201502-15.xml","http://www.samba.org/samba/security/CVE-2014-0239","http://www.securityfocus.com/bid/67691","http://www.securitytracker.com/id/1030309"],"products":["samba:samba"],"source":"nvd","synced_at":"2026-10-19T20:33:06.232976534+00:00"},"epss":{"cve":"CVE-2014-0239","score":0.66811,"percentile":0.99291,"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."]}