How severe is CVE-2017-3166?

CVE-2017-3166 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-3166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3166?

CVE-2017-3166 primarily affects Apache Hadoop. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-3166?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-3166 published?

CVE-2017-3166 was published on 2017-11-13 and last updated on 2026-06-17.

CVE-2017-3166

CVE-2017-3166 is a high-severity vulnerability in Apache Hadoop with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Apache Hadoop
Published: 2017-11-13
Last modified: 2026-06-17

Description

In Apache Hadoop versions 2.6.1 to 2.6.5, 2.7.0 to 2.7.3, and 3.0.0-alpha1, if a file in an encryption zone with access permissions that make it world readable is localized via YARN's localization mechanism, that file will be stored in a world-readable location and can be shared freely with any application that requests to localize that file.

Frequently asked questions

What is CVE-2017-3166?: In Apache Hadoop versions 2.6.1 to 2.6.5, 2.7.0 to 2.7.3, and 3.0.0-alpha1, if a file in an encryption zone with access permissions that make it world readable is localized via YARN's localization mechanism, that file will be stored in a world-readable location and can be shared freely with any application that requests to localize that file.
How severe is CVE-2017-3166?: CVE-2017-3166 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-3166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3166?: CVE-2017-3166 primarily affects Apache Hadoop. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-3166?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-3166 published?: CVE-2017-3166 was published on 2017-11-13 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:apache:hadoop:2.6.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.6.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.6.4:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.6.5:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.7.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.7.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:alpha1:*:*:*:*:*:*

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