CVE-2010-2121: Opera 9.52 allows remote attackers to cause a denial of service (resource consumption) via JavaScript code...

Security readout for executives and security teams

This CVE describes a browser crash or hang condition in Opera 9.52. A remote web page using JavaScript could consume resources by repeatedly creating iframe elements for invalid news or nntp URIs. The sources do not indicate code execution, data theft, privilege escalation, or confirmed active exploitation. Exposure appears limited to environments where Opera 9.52 is still used to browse untrusted content. The provided affected-product metadata is incomplete, but the CVE title and description specifically name Opera 9.52. Treat this as a legacy-browser hygiene issue, not an emergency. If Opera 9.52 is absent, business risk is minimal. If present on sensitive workstations, remove or isolate it because untrusted browsing could disrupt user operations. Mitigation focus: Inventory endpoints for any remaining Opera 9.52 installations.; Check Opera or vendor guidance before choosing a specific corrective action.; Restrict untrusted web browsing from any systems that must retain Opera 9.52..

Prepared

Jun 28, 2026, 02:49 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.