CVE-2015-5377

CRITICALNVD 9.89.8—Trending — 3 sources updated this weekElevated

9.8

Elasticsearch before 1.6.1 allows remote attackers to execute arbitrary code via unspecified vectors involving the transport protocol. NOTE: ZDI appears to claim that CVE-2015-3253 and CVE-2015-5377 are the same vulnerability

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 97.4%
KEV: Not listed

Published

March 6, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttp://www.securityfocus.com/bid/75938
cve@mitrehttp://www.zerodayinitiative.com/advisories/ZDI-15-365/
cve@mitrehttps://discuss.elastic.co/t/elasticsearch-remote-code-execution-cve-2015-5377/25736
cve@mitrehttps://github.com/elastic/elasticsearch/commit/bf3052d14c874aead7da8855c5fcadf5428a43f2
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/75938
af854a3a-2127-422b-91ae-364da2661108http://www.zerodayinitiative.com/advisories/ZDI-15-365/
af854a3a-2127-422b-91ae-364da2661108https://discuss.elastic.co/t/elasticsearch-remote-code-execution-cve-2015-5377/25736
af854a3a-2127-422b-91ae-364da2661108https://github.com/elastic/elasticsearch/commit/bf3052d14c874aead7da8855c5fcadf5428a43f2

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

Data Freshness Timeline

(refreshed 9× in last 7d / 15× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 10:49 UTCEG score recompute
2026-05-28 10:48 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCfi3ro/CVE-2015-5377
First seen Dec 28, 2020
Java deserialization exploit for elasticsearch 1.5.2 CVE-2015-5377
Open source ↗

Frequently asked(5)

What is CVE-2015-5377?

CVE-2015-5377 is a critical vulnerability published on March 6, 2018. Elasticsearch before 1.6.1 allows remote attackers to execute arbitrary code via unspecified vectors involving the transport protocol. NOTE: ZDI appears to claim that CVE-2015-3253 and CVE-2015-5377 are the same vulnerability

When was CVE-2015-5377 disclosed?

CVE-2015-5377 was first published in the National Vulnerability Database on March 6, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-5377 actively exploited?

CVE-2015-5377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-5377?

CVE-2015-5377 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2015-5377?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5377, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2015-5377

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2015-5377?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)