CVE-2011-1824: Opera Browser

Medium severity, CVSS 4.3. EPSS: 5.9% chance of exploitation in the next 30 days.

The VEGAOpBitmap::AddLine function in Opera before 10.61 does not properly initialize memory during processing of the SIZE attribute of a SELECT element, which allows remote attackers to trigger an invalid memory write operation, and consequently cause a denial of service (application crash) or possibly execute arbitrary code, via a large integer attribute value.

Affected products

• Opera Opera Browser: up to and including 10.60; version 5.0 only; version 5.02 only; version 5.10 only; version 5.11 only; version 5.12 only; …

Published 2011-05-10. Last modified 2026-06-16.