{"cve":"CVE-2009-3044","nvd":{"published":"2009-09-02T17:30:00.967","modified":"2026-06-16T23:10:47.387","status":"Modified","description":"Opera before 10.00 does not properly handle a (1) '\\0' character or (2) invalid wildcard character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://www.opera.com/docs/changelogs/freebsd/1000/","http://www.opera.com/docs/changelogs/linux/1000/","http://www.opera.com/docs/changelogs/mac/1000/","http://www.opera.com/docs/changelogs/solaris/1000/","http://www.opera.com/docs/changelogs/windows/1000/"],"products":["opera:opera_browser"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3044","score":0.01006,"percentile":0.63028,"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."]}