← Vulnerability feed

Vulnerability record · CVE-2007-2161 · published 22 April 2007

CVE-2007-2161: Microsoft internet explorer vulnerability

Microsoft · Internet Explorer

Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.

4.3 CVSS 2.0 Medium EPSS 12% · top 3.9%
4.3CVSS 2.0 base score
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (browser hang) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)*/.

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

Affected products

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

References

LinkTags
http://osvdb.org/43314 Broken Link
http://www.securityfocus.com/archive/1/466017/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/466043/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/466175/100/0/threaded Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/33715 VDB Entry
http://osvdb.org/43314 Broken Link
http://www.securityfocus.com/archive/1/466017/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/466043/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/466175/100/0/threaded Third Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/33715 VDB Entry

Track CVE-2007-2161 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%analysed9.8CVE-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%analysed9.8CVE-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%analysed8.8CVE-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%analysed8.8CVE-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%analysed8.8CVE-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%analysed8.8CVE-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%analysed8.8CVE-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%analysed

Source: NIST National Vulnerability Database (record CVE-2007-2161), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.