How severe is CVE-2015-3400?

CVE-2015-3400 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2015-3400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3400?

CVE-2015-3400 affects Zfsonlinux Zfs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-3400?

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

When was CVE-2015-3400 published?

CVE-2015-3400 was published on 2017-10-18 and last updated on 2026-06-17.

CVE-2015-3400

CVE-2015-3400 is a medium-severity vulnerability in Zfsonlinux Zfs with a CVSS 3.x base score of 4.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 3.5
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Zfsonlinux Zfs
Published: 2017-10-18
Last modified: 2026-06-17

Description

sharenfs 0.6.4, when built with commits bcdd594 and 7d08880 from the zfs repository, provides world readable access to the shared zfs file system, which might allow remote authenticated users to obtain sensitive information by reading shared files.

Frequently asked questions

What is CVE-2015-3400?: sharenfs 0.6.4, when built with commits bcdd594 and 7d08880 from the zfs repository, provides world readable access to the shared zfs file system, which might allow remote authenticated users to obtain sensitive information by reading shared files.
How severe is CVE-2015-3400?: CVE-2015-3400 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2015-3400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3400?: CVE-2015-3400 affects Zfsonlinux Zfs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-3400?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3400 published?: CVE-2015-3400 was published on 2017-10-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zfsonlinux:zfs:0.6.4:*:*:*:*:*:*:*

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