CVE-2021-34371
CRITICALNeo4j < 3.4.18 - Insecure Deserialization
Title source: ruleDescription
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.
Exploits (4)
exploitdb
WORKING POC
by Christopher Ellis · javaremotejava
https://www.exploit-db.com/exploits/50170
github
SUSPICIOUS
by Andyyyyuan · pythonpoc
https://github.com/Andyyyyuan/CVE-Poc/tree/main/CVE-2021-34371
Scores
CVSS v3
9.8
EPSS
0.6492
EPSS Percentile
98.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-502
Status
published
Products (2)
neo4j/neo4j
< 3.4.18
org.neo4j/neo4j
0 - 3.5.0Maven
Published
Aug 05, 2021
Tracked Since
Feb 18, 2026