ExploitedIn CISA KEVFix available

CVE-2014-3120

Q: Is CVE-2014-3120 actively exploited?

Yes. CVE-2014-3120 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-15.

Q: What is the CVSS score for CVE-2014-3120?

CVE-2014-3120 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Exploitation confirmed. First attested on 2022-03-25 by CISA-ADP, CISA KEV, GCVE · kevintel, GCVE · shadowserver.

Published2014-07-28
Fixed in1.2.0
WeaknessCWE-284

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2014-07-2819:55CVE publishedNVD
2022-03-25Listed as exploited by GCVEGCVE
2022-03-25Exploitation first reportedCISA KEV
2022-03-25Added to the CISA KEV catalogCISA KEV
2025-02-1020:14SSVC exploitation set to activeCISA-ADP
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2014-3120?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2014-3120?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Elasticsearch

Branch	Affected	Fixed in	Source
1.2	< 1.2.0	1.2.0	NVD

elasticsearch

Branch	Affected	Fixed in	Source
1.4	< 1.4.0.Beta1	1.4.0.Beta1	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Elasticsearch to 1.2.0
CISA’s required action: Apply updates per vendor instructions.due 2022-04-15

Advisories and patches

www.elastic.coVendor Advisory
www.elastic.coVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 5 repositories, unverifiedjeffgeiger/es_injectechohtp/ElasticSearch-CVE-2014-3120xpgdgit/CVE-2014-3120Dungsocool/CVE-2014-3120CyberCTF/vulhub-elasticsearch-cve-2014-3120

CISA Known Exploited Vulnerability

Date Added: 2022-03-25
Patch Due Date: 2022-04-15
Ransomware Use: Unknown
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2022-03-25
GCVEexploitation2022-03-25
CISA-ADPSSVC decisionactive2025-02-10
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.18.12025-02-10
NVDCVSS 3.18.1read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-2842025-02-10
NVDweakness (CWE)CWE-284read 2026-10-23
FIRST EPSSEPSS score88.6 %read 2026-10-23
PoC-in-GitHubproof of concept5read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published: 2014-07-28
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2014-3120?

Is CVE-2014-3120 actively exploited?

Yes. CVE-2014-3120 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-15.

What is the CVSS score for CVE-2014-3120?

CVE-2014-3120 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

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