How severe is CVE-2014-4326?

CVE-2014-4326 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-4326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4326?

CVE-2014-4326 primarily affects Elastic Logstash. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4326?

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-2014-4326 published?

CVE-2014-4326 was published on 2014-07-22 and last updated on 2026-06-17.

CVE-2014-4326

CVE-2014-4326 is a high-severity vulnerability in Elastic Logstash with a CVSS 2.0 base score of 7.5. 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-78.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Elastic Logstash
Published: 2014-07-22
Last modified: 2026-06-17

Description

Elasticsearch Logstash 1.0.14 through 1.4.x before 1.4.2 allows remote attackers to execute arbitrary commands via a crafted event in (1) zabbix.rb or (2) nagios_nsca.rb in outputs/.

Frequently asked questions

What is CVE-2014-4326?: Elasticsearch Logstash 1.0.14 through 1.4.x before 1.4.2 allows remote attackers to execute arbitrary commands via a crafted event in (1) zabbix.rb or (2) nagios_nsca.rb in outputs/.
How severe is CVE-2014-4326?: CVE-2014-4326 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2014-4326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4326?: CVE-2014-4326 primarily affects Elastic Logstash. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-4326?: 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-2014-4326 published?: CVE-2014-4326 was published on 2014-07-22 and last updated on 2026-06-17.

References

Affected products (27)

cpe:2.3:a:elastic:logstash:1.0.14:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.0.15:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.0.16:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.0.17:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.7:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.8:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.9:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.10:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.11:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.12:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.1.13:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash:1.4.1:*:*:*:*:*:*:*

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