CVE-2015-5377 exploit

Exploit for CVE-2015-5377. CVSS 9.8.

Published 5 Sep 2026Updated 5 Sep 202638 sources
CVSS 9.8 ✓ VERIFIED REFERENCE

What happened

RCE in Elasticsearch 1.5.2 via insecure Java deserialization on transport port 9300.

Affected versions

Unknown product: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references