How severe is CVE-2009-3286?

CVE-2009-3286 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2009-3286 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3286?

CVE-2009-3286 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-3286?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-3286 published?

CVE-2009-3286 was published on 2009-09-22 and last updated on 2026-06-16.

CVE-2009-3286

CVE-2009-3286 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Linux Linux Kernel
Published: 2009-09-22
Last modified: 2026-06-16

Description

NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up an inode when an O_EXCL create fails, which causes files to be created with insecure settings such as setuid bits, and possibly allows local users to gain privileges, related to the execution of the do_open_permission function even when a create fails.

Frequently asked questions

What is CVE-2009-3286?: NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up an inode when an O_EXCL create fails, which causes files to be created with insecure settings such as setuid bits, and possibly allows local users to gain privileges, related to the execution of the do_open_permission function even when a create fails.
How severe is CVE-2009-3286?: CVE-2009-3286 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2009-3286 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3286?: CVE-2009-3286 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-3286?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3286 published?: CVE-2009-3286 was published on 2009-09-22 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:2.6.18:*:*:*:*:*:*:*

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