CVE-2010-4587: Opera Browser

High severity, CVSS 9.3. EPSS: 2.3% chance of exploitation in the next 30 days.

Opera before 11.00 on Windows does not properly implement the Insecure Third Party Module warning message, which might make it easier for user-assisted remote attackers to have an unspecified impact via a crafted module.

Affected products

• Opera Opera Browser: up to and including 11.00; version 5.0 only; version 5.02 only; version 5.10 only; version 5.11 only; version 5.12 only; …

Published 2010-12-22. Last modified 2026-06-16.