Is CVE-2015-1427 being actively exploited?

Yes. CVE-2015-1427 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on March 25, 2022.

What is the CVSS score for CVE-2015-1427?

CVE-2015-1427 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2015-1427

CRITICAL · CVSS 9.8CISA KEV: actively exploitedEPSS 99.9%EU EUVD: exploited

The Groovy scripting engine in Elasticsearch before 1.3.8 and 1.4.x before 1.4.3 allows remote attackers to bypass the sandbox protection mechanism and execute arbitrary shell commands via a crafted script.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS score: 99.9% (100th percentile)
In CISA KEV: Yes, added March 25, 2022
In EU EUVD: Yes (EUVD-2022-5539)
Published: February 17, 2015
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Elasticsearch Groovy Scripting Engine Remote Code Execution Vulnerability

Added to the KEV catalog on March 25, 2022; federal remediation due April 15, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-5539 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

elastic / elasticsearch
redhat / fuse

References

http://packetstormsecurity.com/files/130368/Elasticsearch-1.3.7-1.4.2-Sandbox-Escape-Command-Execution.html(Third Party Advisory, VDB Entry)
http://packetstormsecurity.com/files/130784/ElasticSearch-Unauthenticated-Remote-Code-Execution.html(Exploit, Third Party Advisory, VDB Entry)
http://www.elasticsearch.com/blog/elasticsearch-1-4-3-1-3-8-released/(Patch, Vendor Advisory)
http://www.securityfocus.com/archive/1/534689/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/72585(Broken Link, Third Party Advisory, VDB Entry)
https://access.redhat.com/errata/RHSA-2017:0868(Third Party Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/100850(Third Party Advisory, VDB Entry)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1427(US Government Resource)
https://www.elastic.co/community/security/(Not Applicable, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain