# CVE-2003-0838

## Summary

- **CVE ID:** CVE-2003-0838
- **Severity:** UNKNOWN
- **CVSS Score:** 2.68
- **CWE:** N/A
- **Published:** Oct 7, 2003
- **Last Modified:** Mar 16, 2026

## Description

Internet Explorer allows remote attackers to bypass zone restrictions to inject and execute arbitrary programs by creating a popup window and inserting ActiveX object code with a "data" tag pointing to the malicious code, which Internet Explorer treats as HTML or Javascript, but later executes as an HTA application, a different vulnerability than CVE-2003-0532, and as exploited using the QHosts Trojan horse (aka Trojan.Qhosts, QHosts-1, VBS.QHOSTS, or aolfix.exe).

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](https://exchange.xforce.ibmcloud.com/vulnerabilities/13314)
- [CNA](http://marc.info/?l=bugtraq&m=106304733121753&w=2)
- [CNA](http://www.osvdb.org/7872)
- [CNA](http://marc.info/?l=ntbugtraq&m=106302799428500&w=2)
- [CNA](http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/009639.html)
- [CNA](http://marc.info/?l=bugtraq&m=106304876523459&w=2)
- [CNA](http://www.securityfocus.com/bid/8556)
- [CNA](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-040)
- [CNA](http://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind0310&L=ntbugtraq&F=P&S=&P=2169)
- [CNA](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A204)
- [CNA](http://securityresponse.symantec.com/avcenter/venc/data/trojan.qhosts.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 67.06%
- **EPSS Percentile:** 98.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._