CVE Watch—

CVE-2009-1123

Microsoft Windows Improper Input Validation Vulnerability

CVSS

—

No CVSS

EPSS

4.9%

p91

KEV

YES

Mar 3, 2022

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

4.9%EPSS · 30 days4.9%

2026-08-022026-08-31

KEV catalog record

Product

Microsoft / Windows

Vulnerability

Microsoft Windows Improper Input Validation Vulnerability

Added to KEV

Mar 3, 2022

Remediate by

Mar 24, 2022

Known ransomware use

Summary description

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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2009-1123

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