CVE-2003-0344

Microsoft Internet Explorer <6.0 - RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2003-0344. PoCs published by Metasploit, alumni, FelineMenace, including Metasploit module exploits/windows/browser/ms03_020_ie_objecttype.

AI-analyzed exploit summary This Metasploit module exploits a memory corruption vulnerability in Internet Explorer's handling of the OBJECT type attribute (CVE-2003-0344). It uses an egghunter and carefully crafted return addresses to achieve remote code execution on vulnerable Windows systems.

Description

Buffer overflow in Microsoft Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to execute arbitrary code via / (slash) characters in the Type property of an Object tag in a web page.

Exploits (4)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/16581

This Metasploit module exploits a memory corruption vulnerability in Internet Explorer's handling of the OBJECT type attribute (CVE-2003-0344). It uses an egghunter and carefully crafted return addresses to achieve remote code execution on vulnerable Windows systems.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Internet Explorer (versions prior to the MS03-020 patch)
No auth needed
Prerequisites: Vulnerable version of Internet Explorer · Target must visit a malicious webpage
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by alumni · perlremotewindows
https://www.exploit-db.com/exploits/37

This exploit targets a buffer overflow vulnerability in Internet Explorer 5.x-6.x (CVE-2003-0344) by crafting a malicious HTML page with embedded shellcode. The exploit leverages a flaw in URLMON.DLL during wide character conversion to execute arbitrary code via a reverse shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Internet Explorer 5.x-6.x
No auth needed
Prerequisites: Victim must visit a malicious web page using IE 5.x-6.x
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WRITEUP VERIFIED
by FelineMenace · textremotewindows
https://www.exploit-db.com/exploits/22726

The provided text describes a boundary condition error in Microsoft Internet Explorer when handling OBJECT tags with excessive data, potentially leading to arbitrary code execution. However, the actual exploit code is not included in the provided content.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Theoretical
Target: Microsoft Internet Explorer
No auth needed
Prerequisites: Victim must visit a malicious webpage
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ms03_020_ie_objecttype.rb

This Metasploit module exploits a vulnerability in Internet Explorer's handling of the OBJECT type attribute (CVE-2003-0344) by crafting a malicious HTML page that triggers memory corruption, leading to arbitrary code execution. It uses an egghunter technique to locate and execute the payload in memory.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Internet Explorer (Windows NT/XP/2003)
No auth needed
Prerequisites: Victim must visit a malicious webpage or open a crafted HTML file
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (7)

Core 7
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=105476381609135&w=2
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/8943
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A922
Mailing List mailing-list x_refsource_fulldisc
http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/006401.html
Patch, Vendor Advisory third-party-advisory x_refsource_eeye
http://www.eeye.com/html/Research/Advisories/AD20030604.html
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/679556

Scores

EPSS 0.8131
EPSS Percentile 99.6%

Details

Status published
Products (4)
microsoft/ie 6.0
microsoft/internet_explorer 5.01
microsoft/internet_explorer 5.5
microsoft/internet_explorer 6.0
Published Jun 16, 2003
Tracked Since Feb 18, 2026