CVE-2008-2257: Microsoft Internet Explorer

High severity, CVSS 9.3. EPSS: 35.2% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 5.01, 6, and 7 accesses uninitialized memory in certain conditions, which allows remote attackers to cause a denial of service (crash) and execute arbitrary code via vectors related to a document object "appended in a specific order," aka "HTML Objects Memory Corruption Vulnerability" or "XHTML Rendering Memory Corruption Vulnerability," a different vulnerability than CVE-2008-2258.

Affected products

• Microsoft Internet Explorer: version 5.01 only; version 6 only; version 7 only

Published 2008-08-13. Last modified 2026-06-16.