Microsoft » Windows Nt : Security Vulnerabilities, CVEs, Published In November 2004 (Denial of service)

The RPC Runtime Library for Microsoft Windows NT 4.0 allows remote attackers to read active memory or cause a denial of service (system crash) via a malicious message, possibly related to improper length values.

The Virtual DOS Machine (VDM) subsystem of Microsoft Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003 allows local users to access kernel memory and gain privileges via a malicious program that modified some system structures in a way that is not properly validated by privileged operating system functions.