{"cve":"CVE-2016-2047","nvd":{"published":"2016-01-27T20:59:05.610","modified":"2026-06-17T00:43:19.593","status":"Modified","description":"The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47, 10.0.x before 10.0.23, and 10.1.x before 10.1.10; Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier; and Percona Server do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a \"/CN=\" string in a field in a certificate, as demonstrated by \"/OU=/CN=bar.com/CN=foo.com.\"","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":["CWE-254"],"references":["http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00035.html","http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00053.html","http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00033.html","http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00034.html","http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00051.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","mariadb:mariadb","opensuse:leap","oracle:linux","oracle:mysql","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T20:37:48.328043465+00:00"},"epss":{"cve":"CVE-2016-2047","score":0.03741,"percentile":0.89851,"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."]}