CVE-2009-3943
5.0 · MEDIUMOverview
CVE-2009-3943 is a medium-severity vulnerability affecting microsoft internet_explorer. It was published on November 16, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Microsoft Internet Explorer 6 through 6.0.2900.2180 and 7 through 7.0.6000.16711 allows remote attackers to cause a denial of service (application hang) via a JavaScript loop that configures the home page by using the setHomePage method and a DHTML behavior property.
Remediation
Check the references section for vendor advisories and patches from microsoft. Update internet_explorer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| microsoft | internet_explorer | 6 | Affected |
References
Frequently Asked Questions
What is CVE-2009-3943?
CVE-2009-3943 is a medium-severity vulnerability affecting microsoft internet_explorer. It was published on November 16, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).
How severe is CVE-2009-3943?
This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2009-3943?
Check the references section for vendor advisories and patches from microsoft. Update internet_explorer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2009-3943?
CyberStrike's AI-powered security agents can automatically detect CVE-2009-3943 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related MEDIUM CVEs from 2009
View all →hplip.postinst in HP Linux Imaging and Printing (HPLIP) 2.7.7 and 2.8.2 on Ubuntu allows local users
CUPS on Mandriva Linux 2008.0, 2008.1, 2009.0, Corporate Server (CS) 3.0 and 4.0, and Multi Network
Untrusted search path vulnerability in the PySys_SetArgv API function in Python 2.6 and earlier, and
winetricks before 20081223 allows local users to overwrite arbitrary files via a symlink attack on t
Untrusted search path vulnerability in the Python plugin in Dia 0.96.1, and possibly other versions,
Untrusted search path vulnerability in the Python interface in Epiphany 2.22.3, and possibly other v
Untrusted search path vulnerability in the (1) "VST plugin with Python scripting" and (2) "VST plugi
Untrusted search path vulnerability in the Python interface in Eye of GNOME (eog) 2.22.3, and possib
Untrusted search path vulnerability in the Python module in gedit allows local users to execute arbi
Untrusted search path vulnerability in the Python module in xchat allows local users to execute arbi
Untrusted search path vulnerability in src/if_python.c in the Python interface in Vim before 7.2.045
Untrusted search path vulnerability in the Python language bindings for Nautilus (nautilus-python) a