CVE-2004-0866: Internet Explorer 6.0 allows web sites to set cookies for country-specific top-level domains, such as .ltd....

Security readout for executives and security teams

CVE-2004-0866 describes an Internet Explorer 6.0 cookie handling flaw. A malicious website could set cookies for certain country-specific top-level domains, creating a risk that a user's web session could be fixed or hijacked. Business urgency is mainly tied to any remaining legacy IE6 use. Exposure appears limited to environments where Internet Explorer 6.0 is still used, especially for web applications under affected country-specific domain structures. Modern browser fleets are unlikely to be exposed, but legacy kiosks, embedded systems, or isolated business workflows should be checked. Do not treat this as a broad modern-browser emergency. Prioritize it as a legacy technology risk: urgent only if IE6 remains in production or supports sensitive authenticated workflows. Mitigation focus: Inventory endpoints for Internet Explorer 6.0 usage.; Check vendor or Microsoft historical guidance before assuming a patch exists.; Retire or isolate legacy IE6 systems where business processes still depend on them..

Prepared

Jun 30, 2026, 00:54 UTC (UTC+00:00)

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