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CVE-2009-3984

22
FAUCET Score

CVE-2009-3984 describes a vulnerability in Mozilla Firefox and SeaMonkey that allows remote attackers to spoof SSL indicators for HTTP or file URLs. This is achieved by redirecting document.location to an HTTPS URL that returns a 204 No Content status and an empty body. The vulnerability has a CVSS score of 6.8, indicating a medium severity with network access, medium attack complexity, and potential for partial impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.15CPE 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

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.19%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0219 is in the 68th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (6)

mozillapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.9-0.48.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.9-51.el4_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.0.16-4.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.0.16-1.el5_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.0.16-2.el5_4
View patch

Vendor Advisories (1)

redhatCVE-2009-3984Moderate

Mozilla SSL spoofing with document.location and empty SSL response page

Dec 15, 2009

References

bugzilla.mozilla.org / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/37699
Vendor Advisory
secunia.com / advisories/37703
Vendor Advisory
secunia.com / advisories/37704
Vendor Advisory
secunia.com / advisories/37785
Vendor Advisory
secunia.com / advisories/37813
secunia.com / advisories/37856
secunia.com / advisories/37881
securitytracker.com / id
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/54806
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8379
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9791
rhn.redhat.com / errata/RHSA-2009-1673.html
rhn.redhat.com / errata/RHSA-2009-1674.html
redhat.com / archives/fedora-package-announce/2009-December/msg00995.html
redhat.com / archives/fedora-package-announce/2009-December/msg01034.html
redhat.com / archives/fedora-package-announce/2009-December/msg01041.html
debian.org / security/2009/dsa-1956
mozilla.org / security/announce/2009/mfsa2009-69.html
PatchVendor Advisory
novell.com / linux/security/advisories/2009_63_firefox.html
securityfocus.com / bid/37349
securityfocus.com / bid/37367
ubuntu.com / usn/USN-873-1
ubuntu.com / usn/USN-874-1
vupen.com / english/advisories/2009/3547
PatchVendor Advisory