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CVE-2004-0906

18
FAUCET Score

CVE-2004-0906 describes a local privilege escalation vulnerability in the XPInstall installer used by older versions of Mozilla Firefox, Mozilla, and Thunderbird. The flaw allowed insecure permissions for files within .xpi packages, potentially enabling local users to overwrite arbitrary files or execute arbitrary code. With a CVSS score of 4.6 (AV:L/AC:L/Au:N/C:P/I:P/A:P), this vulnerability requires local access and low attack complexity, leading to potential confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation, public exploit code, or KEV listing, the CVE has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
0.8CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.8:*:*:*:*:*:*:*
0.9.2CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.2:*:*:*:*:*:*:*
0.9.2.1CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.2.1:*:*:*:*:*:*:*
0.9.3CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.3:*:*:*:*:*:*:*
0.9.4CPE matchmatch criteria
cpe:2.3:a:mozilla:mozilla:0.9.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 65th percentile among its peer group of 3,052 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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-2004-0906Low

security flaw

Feb 26, 2004

References

bugzilla.mozilla.org / show_bug.cgi
Patch
bugzilla.mozilla.org / show_bug.cgi
Patch
secunia.com / advisories/12526
security.gentoo.org / glsa/glsa-200409-26.xml
exchange.xforce.ibmcloud.com / vulnerabilities/17375
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11668
kb.cert.org / vuls/id/653160
Third Party AdvisoryUS Government Resource
mozilla.org / projects/security/known-vulnerabilities.html
novell.com / linux/security/advisories/2004_36_mozilla.html
Vendor Advisory
redhat.com / support/errata/RHSA-2005-323.html
securityfocus.com / bid/11192