CVE-2011-4683: Opera Browser

High severity, CVSS 10.0. EPSS: 2% chance of exploitation in the next 30 days.

Unspecified vulnerability in Opera before 11.60 has unknown impact and attack vectors, related to a "moderately severe issue."

Affected products

• Opera Opera Browser: up to and including 11.60; version 5.0 only; version 5.02 only; version 5.10 only; version 5.11 only; version 5.12 only; …

Published 2011-12-07. Last modified 2026-06-16.