Microsoft Internet Explorer 5.5 and 6.0 allows remote attackers to bypass the cross-domain security model to run malicious script or arbitrary programs via dialog boxes, aka "Improper Cross Domain Security Validation with dialog box."
CVE-2003-1326
NONECVSS 0.0Elevated
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 16%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 96.6%
- KEV
- Not listed
Published
February 19, 2003
Last Modified
June 16, 2026
References (14)
- cve@mitrehttp://www.ciac.org/ciac/bulletins/n-038.shtml
- cve@mitrehttp://www.iss.net/security_center/static/11258.php
- cve@mitrehttp://www.securityfocus.com/bid/6779
- cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-004
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A126
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A178
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A49
- af854a3a-2127-422b-91ae-364da2661108http://www.ciac.org/ciac/bulletins/n-038.shtml
- af854a3a-2127-422b-91ae-364da2661108http://www.iss.net/security_center/static/11258.php
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/6779
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-004
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A126
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A178
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A49
Frequently asked(4)
What is CVE-2003-1326?
CVE-2003-1326 is a none vulnerability published on February 19, 2003. Microsoft Internet Explorer 5.5 and 6.0 allows remote attackers to bypass the cross-domain security model to run malicious script or arbitrary programs via dialog boxes, aka "Improper Cross Domain Security Validation with dialog box."
When was CVE-2003-1326 disclosed?
CVE-2003-1326 was first published in the National Vulnerability Database on February 19, 2003, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2003-1326 actively exploited?
CVE-2003-1326 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2003-1326?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-1326, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2003-1326
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