CVE-2009-0320: Microsoft Windows Server 2003

Medium severity, CVSS 4.0. EPSS: 1.4% chance of exploitation in the next 30 days.

Microsoft Windows XP, Server 2003 and 2008, and Vista exposes I/O activity measurements of all processes, which allows local users to obtain sensitive information, as demonstrated by reading the I/O Other Bytes column in Task Manager (aka taskmgr.exe) to estimate the number of characters that a different user entered at a runas.exe password prompt, related to a "benchmarking attack."

Affected products

• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version
• Microsoft Windows Vista: any version
• Microsoft Windows XP: any version

Published 2009-01-28. Last modified 2026-06-16.