CVE-2009-3044
Opera before 10.00 does not properly handle a (1) '\0' character or (2) invalid wildcard...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-3044- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-3044- Updated
- 2026-11-02
EUVDEUVD-2009-3028 No score
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.
- Record
EUVD-2009-3028- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-63x4-39mf-5c4v No score
Opera before 10.00 does not properly handle a (1) '\0' character or (2) invalid wildcard...
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.
- Record
GHSA-63x4-39mf-5c4v- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-3044 is a medium vulnerability (CVSS 5.0) in Opera Browser, published September 2, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. No source names a fixed version.
References
opera.com/docs/changelogs/freebsd/1000
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6444
nvd.nist.gov/vuln/detail/CVE-2009-3044
github.com/advisories/GHSA-63x4-39mf-5c4v