How severe is CVE-2017-14730?

CVE-2017-14730 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-2017-14730 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-2017-14730?

CVE-2017-14730 primarily affects Elasticsearch Logstash. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-14730?

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-2017-14730 published?

CVE-2017-14730 was published on 2017-09-25 and last updated on 2026-06-17.

CVE-2017-14730

CVE-2017-14730 is a high-severity vulnerability in Elasticsearch Logstash 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: 7.2
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Elasticsearch Logstash
Published: 2017-09-25
Last modified: 2026-06-17

Description

The init script in the Gentoo app-admin/logstash-bin package before 5.5.3 and 5.6.x before 5.6.1 has "chown -R" calls for user-writable directory trees, which allows local users to gain privileges by leveraging access to a $LS_USER account for creation of a hard link.

Frequently asked questions

What is CVE-2017-14730?: The init script in the Gentoo app-admin/logstash-bin package before 5.5.3 and 5.6.x before 5.6.1 has "chown -R" calls for user-writable directory trees, which allows local users to gain privileges by leveraging access to a $LS_USER account for creation of a hard link.
How severe is CVE-2017-14730?: CVE-2017-14730 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-2017-14730 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-2017-14730?: CVE-2017-14730 primarily affects Elasticsearch Logstash. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-14730?: 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-2017-14730 published?: CVE-2017-14730 was published on 2017-09-25 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:a:elasticsearch:logstash:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.1.1:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.2.0:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.3.2:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.4.2:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.4.3:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.5.2:*:*:*:*:*:*:*
cpe:2.3:a:elasticsearch:logstash:5.6.0:*:*:*:*:*:*:*

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