CVE-2009-3831: Opera Browser

High severity, CVSS 9.3. EPSS: 5.7% chance of exploitation in the next 30 days.

Opera before 10.01 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted domain name.

Affected products

• Opera Opera Browser: before 10.01 (fixed in 10.01)

Published 2009-10-30. Last modified 2026-06-16.