ZeroDay Findings
Sign inSign up

Findings

CVE-2009-1123

Microsoft Windows Improper Input Validation Vulnerability

Published Jun 10, 2009 · updated Jun 16, 2026 · microsoft windows 2000

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."

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 10, 2009 · Catalog

    Detected

    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."

  2. Mar 3, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Mar 24, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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."

Required action

Apply updates per vendor instructions.

CISA due date Mar 24, 2022

Affected

  • cpe microsoft/windows 2000version unspecified
  • cpe microsoft/windows server 2003version unspecified
  • cpe microsoft/windows server 2008version unspecified
  • cpe microsoft/windows vistaversion unspecified
  • cpe microsoft/windows xpversion unspecified
  • vendor Microsoft Windowsversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2009-1123

    The kernel in Microsoft Windows does not properly validate changes to unspecified kernel objects, which allows local users to gain privileges via a crafted application.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2009-1123

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2009-1123

    30-day exploitation probability 4.9%

    first.org
  • NIST NVDVulnerability recordCVE-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 De

    nvd.nist.gov

References