Known Exploited Vulnerability
7.8
HIGH CVSS 3.1
CVE-2009-1123
Microsoft Windows Improper Input Validation Vulnerability - [Actively Exploited]
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."

INFO

Published Date :

June 10, 2009, 6:30 p.m.

Last Modified :

April 9, 2025, 12:30 a.m.

Remotely Exploit :

No
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

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

Affected Products

The following products are affected by CVE-2009-1123 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_server_2008
2 Microsoft windows_2000
3 Microsoft windows_server_2003
4 Microsoft windows_vista
5 Microsoft windows_xp
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
This information is provided by the 3rd party feeds.
  • Microsoft has released a set of patches for Windows 2000, XP, 2003, Vista and 2008.
Public PoC/Exploit Available at Github

CVE-2009-1123 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-1123 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2009-1123 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 4 weeks ago
581 stars 42 fork 42 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1287 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2009-1123 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-1123 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Apr. 04, 2025

    Action Type Old Value New Value
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 04, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Modified Analysis by [email protected]

    Dec. 19, 2024

    Action Type Old Value New Value
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://osvdb.org/54940
    Added Reference http://secunia.com/advisories/35372
    Added Reference http://www.securitytracker.com/id?1022359
    Added Reference http://www.us-cert.gov/cas/techalerts/TA09-160A.html
    Added Reference http://www.vupen.com/english/advisories/2009/1544
    Added Reference https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206
  • Modified Analysis by [email protected]

    Jul. 16, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type http://osvdb.org/54940 No Types Assigned http://osvdb.org/54940 Broken Link
    Changed Reference Type http://secunia.com/advisories/35372 No Types Assigned http://secunia.com/advisories/35372 Broken Link
    Changed Reference Type http://www.securitytracker.com/id?1022359 No Types Assigned http://www.securitytracker.com/id?1022359 Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.us-cert.gov/cas/techalerts/TA09-160A.html US Government Resource http://www.us-cert.gov/cas/techalerts/TA09-160A.html Broken Link, Third Party Advisory, US Government Resource
    Changed Reference Type http://www.vupen.com/english/advisories/2009/1544 No Types Assigned http://www.vupen.com/english/advisories/2009/1544 Broken Link
    Changed Reference Type https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025 No Types Assigned https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025 Patch, Vendor Advisory
    Changed Reference Type https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206 No Types Assigned https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206 Broken Link
    Removed CWE NIST CWE-20
    Added CWE NIST NVD-CWE-noinfo
    Changed CPE Configuration OR *cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:*:*:x32:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:sp2:x32:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:sp2:x64:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:* *cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:* OR *cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:-:*:*:* *cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:*:* *cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Feb. 26, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2003:*:sp2:x64:*:*:*:*:* OR *cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Feb. 26, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2003:*:sp2:itanium:*:*:*:*:* OR *cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 12, 2018

    Action Type Old Value New Value
    Removed Reference http://www.microsoft.com/technet/security/Bulletin/MS09-025.mspx [Patch, Vendor Advisory]
    Added Reference https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-025 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 29, 2017

    Action Type Old Value New Value
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:6206 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6206 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 11, 2009

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.2
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

4.40 }} 1.73%

score

0.87942

percentile