How severe is CVE-2009-2657?

CVE-2009-2657 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2009-2657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2657?

CVE-2009-2657 primarily affects Nilf Nilfs. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2657?

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

When was CVE-2009-2657 published?

CVE-2009-2657 was published on 2009-08-04 and last updated on 2026-06-16.

CVE-2009-2657

CVE-2009-2657 is a medium-severity vulnerability in Nilf Nilfs 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: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Nilf Nilfs
Published: 2009-08-04
Last modified: 2026-06-16

Description

nilfs-utils before 2.0.14 installs multiple programs with unnecessary setuid privileges, which allows local users to execute arbitrary commands via the device string in a -c command line option to mkfs.nilfs2.

Frequently asked questions

What is CVE-2009-2657?: nilfs-utils before 2.0.14 installs multiple programs with unnecessary setuid privileges, which allows local users to execute arbitrary commands via the device string in a -c command line option to mkfs.nilfs2.
How severe is CVE-2009-2657?: CVE-2009-2657 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2009-2657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2657?: CVE-2009-2657 primarily affects Nilf Nilfs. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2657?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2657 published?: CVE-2009-2657 was published on 2009-08-04 and last updated on 2026-06-16.

References

Affected products (30)

cpe:2.3:a:nilf:nilfs:*:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.9:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.10:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.11:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.12:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.13:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.14:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.15:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.16:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.17:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:1.0.18:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:nilf:nilfs:2.0.12:*:*:*:*:*:*:*

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