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CVE-2007-4879

15
FAUCET Score

CVE-2007-4879 describes a privacy vulnerability in Mozilla Firefox before version 2.0.0.13 and SeaMonkey before 1.1.9, where the browsers could automatically install and send TLS client certificates with minimal user interaction. This flaw allowed remote websites to track user activities across different domains by requesting these certificates. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having low attack complexity, primarily impacting confidentiality by enabling user tracking. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.0.12CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
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
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 46th percentile among its peer group of 23,703 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

Remediation records are not available for this CVE.

References

0x90.eu / ff_tls_poc.html
lists.opensuse.org / opensuse-security-announce/2008-04/msg00002.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/29526
Vendor Advisory
secunia.com / advisories/29539
Vendor Advisory
secunia.com / advisories/29541
Vendor Advisory
secunia.com / advisories/29547
Vendor Advisory
secunia.com / advisories/29558
Vendor Advisory
secunia.com / advisories/29560
Vendor Advisory
secunia.com / advisories/29616
Vendor Advisory
secunia.com / advisories/29645
Vendor Advisory
secunia.com / advisories/30327
Vendor Advisory
secunia.com / advisories/30620
Vendor Advisory
sunsolve.sun.com / search/document.do
wiki.rpath.com / wiki/Advisories:rPSA-2008-0128
debian.org / security/2008/dsa-1532
debian.org / security/2008/dsa-1534
debian.org / security/2008/dsa-1535
gentoo.org / security/en/glsa/glsa-200805-18.xml
mandriva.com / security/advisories
mozilla.org / security/announce/2008/mfsa2008-17.html
securityfocus.com / archive/1/490196/100/0/threaded
securityfocus.com / bid/28448
securitytracker.com / id
ubuntu.com / usn/usn-592-1
us-cert.gov / cas/techalerts/TA08-087A.html
US Government Resource
vupen.com / english/advisories/2008/0998/references
Vendor Advisory
vupen.com / english/advisories/2008/1793/references
Vendor Advisory