CVE-2014-3120VulnerabilityPublished 03/25/2022Updated 10/24/2026

CVE-2014-3120: Elasticsearch Remote Code Execution Vulnerability

Affects Elastic ElasticsearchSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/25/2022
KEV deadline: 04/15/2022
EPSS: 88.6% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2014-3120 (opens in a new tab)

Description

CVE-2014-3120 is a high-severity vulnerability in Elasticsearch that allows remote attackers to execute arbitrary MVEL expressions and Java code due to dynamic scripting being enabled. This remote code execution flaw has been exploited in the wild. No specific affected versions or patch information are provided in the input data.

Summary

Elasticsearch's dynamic scripting feature enables remote attackers to execute arbitrary MVEL expressions and Java code, leading to remote code execution. This vulnerability is identified as CVE-2014-3120 and has been exploited in the wild. The input data does not specify affected versions or patch availability.

Impact

Successful exploitation allows remote attackers to execute arbitrary code on the Elasticsearch server, potentially leading to full system compromise. This vulnerability has been observed in active exploitation scenarios.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is confirmed, consider disabling dynamic scripting in Elasticsearch to mitigate the risk of remote code execution.

Weaknesses

CWE-284Improper Access Control (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:56:10 UTC

Weaknesses

References

Related threats