CVE-2003-1387: Opera Browser

High severity, CVSS 7.5. EPSS: 14.7% chance of exploitation in the next 30 days.

Buffer overflow in Opera 6.05 and 6.06, and possibly other versions, allows remote attackers to execute arbitrary code via a URL with a long username.

Affected products

• Opera Opera Browser: version 6.05 only; version 6.06 only; version 7.0 only

Published 2003-12-31. Last modified 2026-06-16.