Vulnerability record · CVE-2009-3943 · published 16 November 2009

CVE-2009-3943: Microsoft internet explorer vulnerability

Microsoft · Internet Explorer

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.

5.0 CVSS 2.0 Medium EPSS 13% · top 3.8%

5.0CVSS 2.0 base score

13%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References, 2 tagged exploit

16 Jun 2026Last modified by NVD

Description

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Internet Explorer Microsoft

References

Link	Tags
http://websecurity.com.ua/3658/	ExploitThird Party Advisory
http://www.securityfocus.com/archive/1/507731/100/0/threaded	Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/507760/100/0/threaded	Broken LinkThird Party AdvisoryVDB Entry
http://websecurity.com.ua/3658/	ExploitThird Party Advisory
http://www.securityfocus.com/archive/1/507731/100/0/threaded	Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/507760/100/0/threaded	Broken LinkThird Party AdvisoryVDB Entry

Track CVE-2009-3943 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2015-0313Adobe Flash Player use-after-free allows remote code executionAdobe Flash Player contains a use-after-free (CWE-416) flaw reachable through unspecified vectors. It affects Flash Player before 13.0.0.269 and 14.x…KEVEPSS 95%analysed2 Feb 2015 9.8CVE-2015-0311Adobe Flash Player unspecified flaw allows remote code executionCVE-2015-0311 is an unspecified vulnerability in Adobe Flash Player affecting versions through 13.0.0.262, 14.x, 15.x, and 16.x through 16.0.0.287 on…KEVEPSS 86%analysed23 Jan 2015 9.8CVE-2014-1776Internet Explorer use-after-free in CMarkup::IsConnectedToPrimaryMarkupMicrosoft Internet Explorer 6 through 11 contains a use-after-free in the CMarkup::IsConnectedToPrimaryMarkup function that allows remote code execut…KEVEPSS 83%analysed27 Apr 2014 8.8CVE-2021-27085Microsoft Internet Explorer remote code execution flawCVE-2021-27085 is a remote code execution vulnerability in Microsoft Internet Explorer. The record gives only a one-line description and no root-caus…KEVEPSS 5.4%analysed11 Mar 2021 8.8CVE-2021-26411Microsoft Internet Explorer and Edge use-after-free memory corruptionCVE-2021-26411 is a use-after-free (CWE-416) memory corruption flaw in Microsoft Internet Explorer, with Microsoft Edge also listed as an affected pr…KEVEPSS 81%analysed11 Mar 2021 8.8CVE-2019-0541Microsoft MSHTML engine input validation flaw allows remote code executionThe MSHTML engine in Microsoft Office, Internet Explorer and related viewers fails to properly validate input, allowing remote code execution. Becaus…KEVEPSS 53%analysed8 Jan 2019 8.8CVE-2017-0222Internet Explorer memory corruption out-of-bounds write RCEInternet Explorer improperly accesses objects in memory, causing an out-of-bounds write (CWE-787) that can be turned into remote code execution. The …KEVEPSS 30%analysed12 May 2017 8.8CVE-2017-0210Internet Explorer cross-domain policy bypass elevation of privilegeInternet Explorer fails to properly enforce cross-domain policies, allowing an attacker to read information from one domain and inject it into anothe…KEVEPSS 22%analysed12 Apr 2017

Source: NIST National Vulnerability Database (record CVE-2009-3943), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.