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Fencer Vulns
high 7.5

CVE-2003-0309 in the critical feed json

Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to bypass security zone restrictions and execute arbitrary programs via a web…

published 2003-05-17 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0304

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
50.0%
EPSS 50.0% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

Internet Explorer 5.01, 5.5, and 6.0 allows remote attackers to bypass security zone restrictions and execute arbitrary programs via a web document with a large number of duplicate file:// or other requests that point to the program and open multiple file download dialogs, which eventually cause Internet Explorer to execute the program, as demonstrated using a large number of FRAME or IFRAME tags, aka the "File Download Dialog Vulnerability."

Timeline

  1. First public exploit (EDB-22575)
  2. Published

Exploit prediction

49.97% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-22575 Microsoft Internet Explorer 5/6 - 'file://' Request Zone Bypass remote, 2003-05-09

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.