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CVE-2006-3873

7.5 · HIGH

Heap-based buffer overflow in URLMON.DLL in Microsoft Internet Explorer 6 SP1 on Windows 2000 and XP SP1, with versions the MS06-042 patch before 20060912, allows remote attackers to cause a denial…

Published Sep 12, 2006microsoftEPSS 29.44%

Overview

CVE-2006-3873 is a high-severity vulnerability affecting microsoft ie. It was published on September 12, 2006 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Heap-based buffer overflow in URLMON.DLL in Microsoft Internet Explorer 6 SP1 on Windows 2000 and XP SP1, with versions the MS06-042 patch before 20060912, allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long URL in a GZIP-encoded website that was the target of an HTTP redirect, due to an incomplete fix for CVE-2006-3869.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update ie 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

VendorProductVersionsStatus

References

Refresearch.eeye.com/html/advisories/published/AD20060912.htmlRefsecurityreason.com/securityalert/1555Refsecuritytracker.com/id?1016839Refweblog.infoworld.com/techwatch/archives/007870.htmlRefwww.osvdb.org/30834Refwww.securityfocus.com/archive/1/445835/100/0/threadedRefwww.securityfocus.com/bid/19987Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-042Refexchange.xforce.ibmcloud.com/vulnerabilities/28893Refresearch.eeye.com/html/advisories/published/AD20060912.html

How CyberStrike helps

Frequently asked questions

What is CVE-2006-3873?

CVE-2006-3873 is a high-severity vulnerability affecting microsoft ie. It was published on September 12, 2006 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2006-3873?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2006-3873?

Check the references section for vendor advisories and patches from microsoft. Update ie 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-2006-3873?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-3873 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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