CVE-2009-3046

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-02 · updated 2026-06-16
Weakness: CWE-295

Description

Opera before 10.00 does not check all intermediate X.509 certificates for revocation, which makes it easier for remote SSL servers to bypass validation of the certificate chain via a revoked certificate.

Affected products

Opera Browser: before 10.00 — fixed in 10.00

How to fix

Upgrade to a fixed version: Opera Browser 10.00. Check the vendor advisory for mitigations.

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/
http://www.opera.com/support/kb/view/929/
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6357
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/

Get alerted when CVE-2009-3046 or the next vulnerability affects your stack