CVE-2009-1123
KEVMicrosoft Windows Improper Input Validation Vulnerability
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.
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."
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HPublishedJun 10, 2009
Last modifiedJun 16, 2026
Added to KEVMar 3, 2022
Remediation dueMar 24, 2022
References
- osvdb.org/54940Broken Link
- secunia.com/advisories/35372Broken Link
- securitytracker.com/id?1022359Broken LinkThird Party Advisory
- us-cert.gov/cas/techalerts/TA09-160A.htmlBroken LinkThird Party Advisory
- vupen.com/english/advisories/2009/1544Broken Link
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025PatchVendor Advisory
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206Broken Link
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1123US Government Resource
0 recent articles mention this CVE
69
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1678 days
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 4.9% · top 8% of all CVEs
- Weakness
- NVD-CWE-noinfo
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.