01 Record

CVE-2014-3120

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.

HighKEVPUBLISHEDCNA: mitre

CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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02 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.

03 Exploitation and scoring

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-03-25. Federal remediation due 2022-04-15.

SSVC decision

ExploitationactiveCISA reports credible evidence of active exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

88.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.7% of scored records. A rank, not a probability.

NVD base score

8.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2014-07-28 19:00Z12 YR AGO

Last updated

2025-10-22 00:05Z1 YR AGO

Reserved

2014-04-29

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

CWE-284Improper Access ControlPillar
CWE-749Exposed Dangerous Method or FunctionBase

Data version

5.1

Document digest

339102531de95ea22b4c82d9b1886a86b3a080f4f779339cecd8e8ab8a557cc8

05 Affected products

VendorProductVersionsPlatforms

elasticelasticsearchNot specified—

redhatfuse_esb_enterpriseNot specified—

redhatfuse_management_consoleNot specified—

redhatfuse_mq_enterpriseNot specified—

redhatjboss_amqNot specified—

redhatjboss_fuseNot specified—

redhatsatelliteNot specified—

rhel_sam1.4Not specified—

06 References

www.elastic.cohttps://www.elastic.co/blog/logstash-1-4-3-releasedx_refsource_CONFIRM
www.exploit-db.com33370http://www.exploit-db.com/exploits/33370exploitx_refsource_EXPLOIT-DB
www.securityfocus.com67731http://www.securityfocus.com/bid/67731vdb-entryx_refsource_BID
www.osvdb.org106949http://www.osvdb.org/106949vdb-entryx_refsource_OSVDB
bouk.cohttp://bouk.co/blog/elasticsearch-rce/x_refsource_MISC
www.rapid7.comhttp://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rcex_refsource_MISC
www.found.nohttps://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearchx_refsource_MISC
www.elastic.cohttps://www.elastic.co/community/security/x_refsource_CONFIRM
www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-3120government-resource