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Fencer Vulns
critical 10.0

CVE-2004-0764 json

Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, allow remote web sites to hijack the user interface via the "chrome" fl…

published 2004-08-03 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0762

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, allow remote web sites to hijack the user interface via the "chrome" flag and XML User Interface Language (XUL) files.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2004-0764 updated

security flaw

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.23% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.