CVE-2008-4029: Cross-domain vulnerability in Microsoft XML Core Services 3.0 and 4.0, as used in Internet Explorer, allows...

Security readout for executives and security teams

CVE-2008-4029 is an old Microsoft XML Core Services issue affecting MSXML 3.0 and 4.0 when used through Internet Explorer. A malicious XML document could let an attacker read sensitive information across domain boundaries. The provided sources identify the flaw and Microsoft bulletin MS08-069, but do not provide CVSS or current affected-product detail. Exposure is most likely in legacy Windows environments where Internet Explorer or applications relying on MSXML 3.0 or 4.0 remain present. The bundle does not enumerate CPEs, supported versions, or non-Microsoft downstream products. Treat this as legacy risk management rather than a current emergency unless exposed legacy systems remain in use. Prioritize remediation where old Internet Explorer workflows handle sensitive internal web content. Mitigation focus: Apply Microsoft guidance and updates from MS08-069 where applicable.; Inventory systems and applications still using Internet Explorer or MSXML 3.0/4.0.; Retire or isolate legacy browser/XML dependencies where updates are unavailable..

Prepared

Jun 28, 2026, 11:59 UTC (UTC+00:00)

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