CVE-2004-2659: Mozilla

Medium severity, CVSS 4.0. EPSS: 1.1% chance of exploitation in the next 30 days.

Opera offers an Open button to verify that a user wishes to execute a downloaded file, which allows user-assisted remote attackers to construct a race condition that tricks a user into clicking Open via a request for a different mouse or keyboard action very shortly before the Open dialog appears. NOTE: this is a different issue than CVE-2005-2407.

Affected products

• Mozilla Mozilla: affected versions not specified
• Opera Opera Browser: affected versions not specified

Published 2004-12-31. Last modified 2026-06-16.