CVE-2021-34371

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

No affected versions have been published.

Timeline

Published
Aug 5, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-34371: Critical severity, CVSS 9.8 | Vulnix