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CVE-2005-0590

15
FAUCET Score

CVE-2005-0590 describes a hostname spoofing vulnerability affecting Mozilla Firefox, Thunderbird, and Mozilla Suite versions prior to 1.0.1 and 1.7.6 respectively. This flaw allowed remote attackers to manipulate the installation confirmation dialog by injecting a long "user:pass" sequence into a URL, thereby obscuring the true hostname. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, though its impact is limited to partial integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.8CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:*
0.9.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:*
0.9.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 59th percentile among its peer group of 23,723 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, 0.0 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 (2)

mozillapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:1.0.1-1.4.3
View patch

Vendor Advisories (1)

redhatCVE-2005-0590Low

security flaw

Feb 24, 2005

References

bugzilla.mozilla.org / show_bug.cgi
Patch
secunia.com / advisories/19823
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100041
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10010
gentoo.org / security/en/glsa/glsa-200503-10.xml
PatchVendor Advisory
gentoo.org / security/en/glsa/glsa-200503-30.xml
PatchVendor Advisory
mozilla.org / security/announce/mfsa2005-17.html
Vendor Advisory
novell.com / linux/security/advisories/2006_04_25.html
redhat.com / support/errata/RHSA-2005-176.html
redhat.com / support/errata/RHSA-2005-384.html
securityfocus.com / bid/12659