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CVE-2004-0764

25
FAUCET Score

CVE-2004-0764 describes a critical vulnerability affecting older versions of Mozilla, Firefox, and Thunderbird, allowing remote websites to hijack the user interface through the "chrome" flag and XUL files. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network with low complexity and no authentication, leading to complete compromise of confidentiality, integrity, and availability. Despite its severe impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE. Its EPSS score is low, suggesting a minimal likelihood of exploitation in the wild, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
<= 1.7CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:*:*:*:*:*:*:*:*
<= 0.7CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.23%
Probability of exploitation in next 30 days
EPSS Percentile
86.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0323 is in the 77th percentile among its peer group of 51,455 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mozillapatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2004-0764Important

security flaw

Jul 30, 2004

References

ftp.sco.com / pub/updates/OpenServer/SCOSA-2005.49/SCOSA-2005.49.txt
bugzilla.mozilla.org / show_bug.cgi
PatchVendor Advisory
marc.info
secunia.com / advisories/12188
exchange.xforce.ibmcloud.com / vulnerabilities/16837
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2418
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9419
kb.cert.org / vuls/id/262350
US Government Resource
mozilla.org / projects/security/known-vulnerabilities.html
novell.com / linux/security/advisories/2004_36_mozilla.html
redhat.com / support/errata/RHSA-2004-421.html
securityfocus.com / bid/10832
securityfocus.com / bid/15495