CVE-2008-4800: Microsoft Debug Diagnostic Tool

Medium severity, CVSS 5.0. EPSS: 25.8% chance of exploitation in the next 30 days.

The DebugDiag ActiveX control in CrashHangExt.dll, possibly 1.0, in Microsoft Debug Diagnostic Tool allows remote attackers to cause a denial of service (NULL pointer dereference and Internet Explorer 6.0 crash) via a large negative integer argument to the GetEntryPointForThread method. NOTE: this issue might only be exploitable in limited environments or non-default browser settings.

Affected products

• Microsoft Debug Diagnostic Tool: any version

Published 2008-10-31. Last modified 2026-06-16.