CVE-2009-1528: Microsoft Internet Explorer

High severity, CVSS 9.3. EPSS: 35.3% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 6 and 7 for Windows XP SP2 and SP3; 6 and 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 does not properly synchronize AJAX requests, which allows allows remote attackers to execute arbitrary code via a large number of concurrent, asynchronous XMLHttpRequest calls, aka "HTML Object Memory Corruption Vulnerability."

Affected products

• Microsoft Internet Explorer: version 6 only; version 7 only

Published 2009-06-10. Last modified 2026-06-16.