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Fencer Vulns
low 2.6

CVE-2005-0591 json

Firefox before 1.0.1 allows remote attackers to spoof the (1) security and (2) download modal dialog boxes, which could be used to trick us…

published 2005-02-28 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-0592

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Firefox before 1.0.1 allows remote attackers to spoof the (1) security and (2) download modal dialog boxes, which could be used to trick users into executing script or downloading and executing a file, aka "Firespoofing."

Patch / fix

  • firefox RHEL 4 1.0.1-1.4.3

red hat advisories RHSA-2005:176

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-2005-0591 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 firefox 1.0.1-1.4.3 Red Hat Enterprise Linux Desktop version 4 firefox 1.0.1-1.4.3 Red Hat Enterprise Linux ES version 4 firefox 1.0.1-1.4.3 Red Hat Enterprise Linux WS version 4 firefox 1.0.1-1.4.3
    fixed: vendor fix RHSA-2005:176

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

2.02% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • mikx.de http://www.mikx.de/firespoofing/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:N/I:P/A:N

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.