CVEs / CVE-2009-1123
CVE-2009-1123: Microsoft Windows Improper Input Validation Vulnerability
- Known exploited in the CISA KEV catalog since 3 Mar 2022
- high 7.8 CVSS 3.1 (NVD)
- EPSS 4.87% chance of exploitation in the next 30 days, higher than 92% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
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."
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 3 Mar 2022 |
|---|---|
| Due date for US federal agencies | 24 Mar 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HScored by NVD |
|---|
References
- CVE-2009-1123 on NVD
- CVE-2009-1123 in the CISA KEV catalog
- http://osvdb.org/54940 Broken Link
- http://secunia.com/advisories/35372 Broken Link
- http://www.securitytracker.com/id?1022359 Broken Link, Third Party Advisory, VDB Entry
- http://www.us-cert.gov/cas/techalerts/TA09-160A.html Broken Link, Third Party Advisory, US Government Resource
- http://www.vupen.com/english/advisories/2009/1544 Broken Link
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025 Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206 Broken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1123 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.