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CVE-2009-2465

26
FAUCET Score

CVE-2009-2465 describes a critical memory corruption vulnerability affecting Mozilla Firefox before version 3.0.12 and Thunderbird. This flaw, stemming from double frame construction in specific C++ files, allows remote attackers to trigger a denial of service or execute arbitrary code. With a CVSS score of 10.0, it represents a severe risk, requiring no authentication or complex attack vectors, and potentially leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, 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
<= 3.0.11CPE 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

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
5.41%
Probability of exploitation in next 30 days
EPSS Percentile
91.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0541 is in the 86th percentile among its peer group of 51,551 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 (4)

mozillapatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.0.12-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.0.12-1.el5_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.0.12-1.el5_3
View patch

Vendor Advisories (1)

redhatCVE-2009-2465Critical

Mozilla double frame construction crashes

Jul 21, 2009

References

lists.opensuse.org / opensuse-security-announce/2009-07/msg00005.html
lists.opensuse.org / opensuse-security-announce/2009-08/msg00002.html
rhn.redhat.com / errata/RHSA-2009-1162.html
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/35914
Vendor Advisory
secunia.com / advisories/35943
Vendor Advisory
secunia.com / advisories/35944
Vendor Advisory
secunia.com / advisories/36005
secunia.com / advisories/36145
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10402
sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
redhat.com / archives/fedora-package-announce/2009-July/msg01032.html
mozilla.org / security/announce/2009/mfsa2009-34.html
PatchVendor Advisory
securityfocus.com / bid/35758
Patch
vupen.com / english/advisories/2009/1972
PatchVendor Advisory
vupen.com / english/advisories/2009/2152