CVE-2009-0320

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-01-28 · updated 2026-06-16
Weakness: CWE-200

Description

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: all versions
Microsoft Windows Server 2008: all versions
Microsoft Windows Vista: all versions
Microsoft Windows XP Service Pack 3: all versions

References

http://www.securityfocus.com/archive/1/500393/100/0/threaded
http://www.securityfocus.com/bid/33440
http://www.securityfocus.com/archive/1/500393/100/0/threaded
http://www.securityfocus.com/bid/33440

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