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CVE-2009-3286

16
FAUCET Score

CVE-2009-3286 describes a flaw in the NFSv4 implementation within the Linux kernel 2.6.18, and potentially other versions, where an inode is not properly cleaned up after a failed O_EXCL file creation. This oversight can lead to files being created with insecure permissions, such as setuid bits, potentially allowing local privilege escalation. The vulnerability has a CVSS score of 4.6, indicating a low attack complexity and requiring local access, with potential impacts 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 surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.18:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 71st percentile among its peer group of 3,052 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-164.6.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-3286Important

kernel: O_EXCL creates on NFSv4 are broken

Sep 9, 2009

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2010-02/msg00005.html
lists.vmware.com / pipermail/security-announce/2010/000082.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/37105
Vendor Advisory
secunia.com / advisories/38794
Vendor Advisory
secunia.com / advisories/38834
Vendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7527
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9757
rhn.redhat.com / errata/RHSA-2009-1548.html
openwall.com / lists/oss-security/2009/09/21/2
ubuntu.com / usn/USN-852-1
vupen.com / english/advisories/2010/0528
Vendor Advisory