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CVE-2003-0838

7.5
CVSS v2.0 Base Score
67.06%
MEDIUM RiskEPSS (99th percentile)
NVD-CWE-Other

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).

Published: 11/17/2003
Modified: 4/16/2026
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Vulnerability Summary

CVSS v2 Score

7.5

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

EPSS Score (Exploitation Probability)

67.06%MEDIUM Exploitation Risk
99th percentile

This vulnerability has a 67.06% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.

CWE Classification

NVD-CWE-Other