CRITICAL

CVE-2021-34371

CVSS v3

9.8

CRITICAL

EPSS Score

64.9%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
8/5/2021

Frequently asked questions

What is CVE-2021-34371?

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.

Is CVE-2021-34371 actively exploited?

Active exploitation of CVE-2021-34371 has not been confirmed. The EPSS score is 64.9%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-34371?

CVE-2021-34371 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-34371 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.