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CVE-2014-3120

8.1, high Known exploited

Elasticsearch Remote Code Execution Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.1, high high CVSS v3.1
EPSS, next 30 days
89% higher than 99.7% of scored CVEs
Exploitation
Confirmed in the wild
Published
28 Jul 201412 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 25 Mar 2022. US federal agencies had to remediate by 15 Apr 2022, a deadline that has passed.

Required action. Apply updates per vendor instructions.

Description

The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which allows remote attackers to execute arbitrary MVEL expressions and Java code via the source parameter to _search. NOTE: this only violates the vendor's intended security policy if the user does not run Elasticsearch in its own independent virtual machine.

Details

Vendor
Elastic
Product
Elasticsearch
Weakness
CWE-284 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
cve@mitre.org

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References 9

Exploit code 5

Advisories 2

Other references 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Elastic CVEs

Every Elastic CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2019-7609 Kibana Arbitrary Code Execution KEV EPSS 95% 10, critical
  • CVE-2015-1427 Elasticsearch Groovy Scripting Engine Remote Code Execution Vulnerability KEV EPSS 100% 9.8, critical
  • CVE-2024-14047 Elastic Security Link Following Vulnerability EPSS 0.1% 7.1, high
  • CVE-2026-78607 Elasticsearch Missing Authorization Vulnerability EPSS 0.3% 7.1, high

Beyond this page

Is CVE-2014-3120 in your network?

This page tells you how dangerous CVE-2014-3120 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2014-3120 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.