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CVE-2005-1155

22
FAUCET Score

CVE-2005-1155 describes a critical vulnerability in Firefox versions prior to 1.0.3 and Mozilla Suite before 1.7.7, where the favicon functionality could be abused. Remote attackers could execute arbitrary code by embedding a javascript: URL within the href attribute of a <LINK rel="icon"> tag, a technique dubbed "Firelinking." This vulnerability carries a CVSS score of 7.5, indicating a high severity with a network-based attack vector and low attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. Despite its age and high FAUCET Risk Score of 95/100, there is no evidence of active exploitation, publicly available 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

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.28%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0828 is in the 91st percentile among its peer group of 51,553 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 (3)

mozillapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:1.0.3-1.4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: devhelp-0:0.9.2-2.4.4
View patch

Vendor Advisories (1)

redhatCVE-2005-1155Important

security flaw

Apr 15, 2005

References

ftp.sco.com / pub/updates/OpenServer/SCOSA-2005.49/SCOSA-2005.49.txt
bugzilla.mozilla.org / show_bug.cgi
Patch
secunia.com / advisories/14938
PatchVendor Advisory
secunia.com / advisories/14992
PatchVendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100021
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10655
gentoo.org / security/en/glsa/glsa-200504-18.xml
PatchVendor Advisory
kb.cert.org / vuls/id/973309
PatchThird Party AdvisoryUS Government Resource
mikx.de / firelinking
Exploit
mozilla.org / security/announce/mfsa2005-37.html
Vendor Advisory
redhat.com / support/errata/RHSA-2005-383.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2005-384.html
redhat.com / support/errata/RHSA-2005-386.html
PatchVendor Advisory
securityfocus.com / bid/13216
securityfocus.com / bid/15495