Vulnerability Intelligence Report
Microsoft Windows Improper Input Validation Vulnerability
CVE-2009-1123
The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 SP2 does not properly validate changes to unspecified kernel objects, which allows local users to gain privileges via a crafted application, aka "Windows Kernel Desktop Vulnerability."
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:4.92%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-20 ↗CWE-20 (via CISA KEV)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| microsoft | windows_2000 | all |
| microsoft | windows_server_2003 | all |
| microsoft | windows_server_2008 | all |
| microsoft | windows_vista | all |
| microsoft | windows_xp | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2009-03-25T00:00:00 |
| Published | 2009-06-10T18:00:00 |
| Patch Date | 2009-06-09 |
| Last Updated | 2025-10-22T00:05:54 |
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