VULNERABILITY INTELLIGENCE

CVE-2021-34371

CVSS score9.8 CRITICAL

EPSS probability13.39%

CISA KEVNot currently listed

Published2021-08-05

Last modified2026-06-17

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

Description

Neo4j through 3.4.18 (with the shell server enabled) exposes an RMI service that arbitrarily deserializes Java objects, e.g., through setSessionVariable. An attacker can abuse this for remote code execution because there are dependencies with exploitable gadget chains.

Weakness classification

nvd@nist.gov: CWE-502

Primary references

cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry