CVE-2003-1026: Internet Explorer 5.01 through 6 SP1 allows remote attackers to bypass zone restrictions via a javascript p...

Security readout for executives and security teams

This is an old Internet Explorer flaw where a malicious web page could trick the browser into running script under a more trusted security zone. For most modern environments the exposure is low unless legacy IE 5.01 through IE 6 SP1 still exists on unmanaged, embedded, or isolated systems. Exposure is limited to systems still running Internet Explorer 5.01 through 6 SP1 or similarly unpatched legacy images. Modern supported browsers are not identified as affected in the provided sources. Treat this as a legacy-risk cleanup item with high impact where affected systems remain. It should not drive emergency response unless inventory confirms obsolete Internet Explorer exposure or sensitive legacy systems can browse untrusted content. Mitigation focus: Apply Microsoft MS04-004 or later vendor-supported Internet Explorer cumulative guidance where applicable.; Remove or isolate systems that require Internet Explorer 5.01 through 6 SP1.; Restrict legacy browser access to trusted internal sites only..

Prepared

Jun 30, 2026, 07:43 UTC (UTC+00:00)

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