VULNERABILITY INTELLIGENCE
CVE-2009-3044
CVSS score5 MEDIUM
EPSS probability1.01%
CISA KEVNot currently listed
Published2009-09-02
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N
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.