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CVE-2009-3274

16
FAUCET Score

CVE-2009-3274 describes a vulnerability in Mozilla Firefox versions 3.6a1, 3.5.3, 3.5.2, and earlier 3.5.x, as well as 3.0.14 and earlier 2.x and 3.x, specifically on Linux systems. The flaw stems from the browser's use of a predictable /tmp pathname for downloaded files, allowing a local attacker to replace an arbitrary downloaded file by pre-placing a file in the expected /tmp location. This vulnerability has a CVSS score of 4.4, indicating a medium attack complexity and potential for partial confidentiality, integrity, and availability impact, requiring local access. 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
2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0:*:*:*:*:*:*:*
2.0.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.1:*:*:*:*:*:*:*
2.0.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.2:*:*:*:*:*:*:*
2.0.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.3:*:*:*:*:*:*:*
2.0.0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.4MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 14th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (10)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:2.0.0.24-2.el5_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.9-0.47.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.0.15-3.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: nspr-0:4.7.6-1.el4_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.9-50.el4_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird-0:1.5.0.12-25.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.0.15-3.el5_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nspr-0:4.7.6-1.el5_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.0.15-3.el5_4
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2009-3274Moderate

Firefox: Predictable /tmp pathname use

Sep 9, 2009

References

jbrownsec.blogspot.com / 2009/09/vamos-updates.html
Broken Link
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingVendor Advisory
secunia.com / advisories/36649
Third Party Advisory
securitytube.net / Zero-Day-Demos-%28Firefox-Vulnerability-Discovered%29-video.aspx
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9641
Third Party Advisory
sunsolve.sun.com / search/document.do
Broken Link
mandriva.com / security/advisories
Broken Link
mozilla.org / security/announce/2009/mfsa2009-53.html
Vendor Advisory
redhat.com / support/errata/RHSA-2010-0153.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0154.html
Third Party Advisory
vupen.com / english/advisories/2009/3334
Third Party Advisory
vupen.com / english/advisories/2010/0650
Third Party Advisory